Update:

I've updated grpc to v1.53 and still getting the same error:

LogPlayLevel: UAT: 02-23 22:51:34.793 23217 23654 D UE      : 
[2023.02.23-18.51.34:793][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::100::1: 
handshake_manager 0x79210acd40: error=OK shutdown=0 index=1, 
args={endpoint=0x7921e36a00, 
args={grpc.client_channel_factory=0x7921d34480, 
grpc.default_authority=api-studio.project.ai, grpc.http2_scheme=https, 
grpc.internal.channel_credentials=0x79211bf500, 
grpc.internal.event_engine=0x7921d34a10, 
grpc.internal.security_connector=0x7922014680, 
grpc.internal.subchannel_pool=0x796dfcbef0, grpc.primary_user_agent=g
rpc-c++/1.53.0-pre1, grpc.resource_quota=0x796dfcbda0, 
grpc.server_uri=dns:///api-studio.project.ai}, 
read_buffer=0xb40000796b7ef240 (length=0), exit_early=0}
LogPlayLevel: UAT: 02-23 22:51:34.793 23217 23654 D UE      : 
[2023.02.23-18.51.34:793][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::146::1: 
handshake_manager 0x79210acd40: calling handshaker http_connect 
[0x7921df0010] at index 1
LogPlayLevel: UAT: 02-23 22:51:34.794 23217 23654 D UE      : 
[2023.02.23-18.51.34:793][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::100::1: 
handshake_manager 0x79210acd40: error=OK shutdown=0 index=2, 
args={endpoint=0x7921e36a00, 
args={grpc.client_channel_factory=0x7921d34480, 
grpc.default_authority=api-studio.project.ai, grpc.http2_scheme=https, 
grpc.internal.channel_credentials=0x79211bf500, 
grpc.internal.event_engine=0x7921d34a10, 
grpc.internal.security_connector=0x7922014680, 
grpc.internal.subchannel_pool=0x796dfcbef0, grpc.primary_user_agent=g
rpc-c++/1.53.0-pre1, grpc.resource_quota=0x796dfcbda0, 
grpc.server_uri=dns:///api-studio.project.ai}, 
read_buffer=0xb40000796b7ef240 (length=0), exit_early=0}
LogPlayLevel: UAT: 02-23 22:51:34.794 23217 23654 D UE      : 
[2023.02.23-18.51.34:794][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::146::1: 
handshake_manager 0x79210acd40: calling handshaker security [0x7922005080] 
at index 2
LogPlayLevel: UAT: 02-23 22:51:34.794 23217 23654 D UE      : 
[2023.02.23-18.51.34:794][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\iomgr\tcp_posix.cc::1805::1: 
WRITE 0x7921e36a00 (peer=ipv4:xx.xxx.xxx.xxx:443)
LogPlayLevel: UAT: 02-23 22:51:34.794 23217 23654 D UE      : 
[2023.02.23-18.51.34:794][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\iomgr\tcp_posix.cc::1809::0: 
WRITE DATA: 16 03 01 01 3b 01 00 01 37 03 03 4e 99 e3 c7 53 58 21 9b b3 ea 
c8 e2 8f ac 53 59 dc d6 9c 2c 2c f8 59 96 a9 9b 45 0a 5e 5b 96 43 20 1c e0 
b5 3d b9 5d 4b 26 39 94 26 50 72 2e 9c 61 78 27 df 13 50 ad eb 0e f5 dc 0f 
c7 ba 00 7f 60 00 10 13 02 13 03 13 01 c0 2b c0 2c c0 2f c0 30 00 ff 01 00 
00 de 00 00 00 1a 00 18 00 00 15 61 70 69 2d 73 74 75 64 69 6f 2e 69 6e 77 
6f 72 6c 64 2e 61 69 00 0b 00 04 03 00 01 0
2 00 0a 00 04 00 02 00 17 00 23 00 00 33 74 00 00 00 10 00 0e 00 0c 08 67 
72 70 63 2d 65 78 70 02 68 32 00 16 00 00 00 17 00 00 00 0d 00 30 00 2e 04 
03 05 03 06 03 08 07 08 08 08 09 08 0a 08 0b 08 04 08 05 08 06 04 01 05 01 
06 01 03 03 02 03 03 01 02 01 03 02 02 02 04 02 05 02 06 02 00 2b 00 05 04 
03 04 03 03 00 2d 00 02 01 01 00 33 00 47 00 45 00 17 00 41 04 cb 7e c2 38 
1b 3e 7d 6e 3b 89 2c 7c 10 ff 77 8f 37 94 14 db 35 bf 05 ea 29 cc 3a b3 90 
fa 85 b2 2e 2e 3c d2 ff 5c 19 96 a4
LogPlayLevel: Error: UAT: 02-23 22:51:34.806 23217 23654 D UE      : 
[2023.02.23-18.51.34:806][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\iomgr\tcp_posix.cc::1853::1: 
write: UNKNOWN:Bad address 
{created_time:"2023-02-23T22:51:34.794166725+04:00", errno:14, 
os_error:"Bad address", syscall:"sendmsg", fd:135, grpc_status:14, 
target_address:"ipv4:xx.xxx.xxx.xxx:443"}
LogPlayLevel: Error: UAT: 02-23 22:51:34.807 23217 23654 D UE      : 
[2023.02.23-18.51.34:807][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\security\transport\security_handshaker.cc::207::0:
 
Security handshake failed: UNKNOWN:Handshake write failed 
{created_time:"2023-02-23T22:51:34.806897975+04:00", children:[UNKNOWN:Bad 
address {target_address:"ipv4:xx.xxx.xxx.xxx:443", grpc_status:14, fd:135, 
syscall:"sendmsg", os_error:"Bad address", errno:14, 
created_time:"2023-02-23T22:51:34.794166725+04:00"}]}
LogPlayLevel: Error: UAT: 02-23 22:51:34.807 23217 23654 D UE      : 
[2023.02.23-18.51.34:807][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::100::1: 
handshake_manager 0x79210acd40: error=UNKNOWN:Handshake write failed 
{created_time:"2023-02-23T22:51:34.806897975+04:00", children:[UNKNOWN:Bad 
address {target_address:"ipv4:xx.xxx.xxx.xxx:443", grpc_status:14, fd:135, 
syscall:"sendmsg", os_error:"Bad address", errno:14, 
created_time:"2023-02-23T22:51:34.794166725+04:00"}]} shutdown=0 index=3, 
args={endpoint=(nil), args={}, read_buffer=(nil) (length=0), 
exit_early=0}
LogPlayLevel: Error: UAT: 02-23 22:51:34.807 23217 23654 D UE      : 
[2023.02.23-18.51.34:807][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\transport\handshaker.cc::132::1: 
handshake_manager 0x79210acd40: handshaking complete -- scheduling 
on_handshake_done with error=UNKNOWN:Handshake write failed 
{created_time:"2023-02-23T22:51:34.806897975+04:00", children:[UNKNOWN:Bad 
address {target_address:"ipv4:xx.xxx.xxx.xxx:443", grpc_status:14, fd:135, 
syscall:"sendmsg", os_error:"Bad address", errno:14, 
created_time:"2023-02-23T22:51:34.794166725+04:00"}]}
LogPlayLevel: UAT: 02-23 22:51:34.807 23217 23654 D UE      : 
[2023.02.23-18.51.34:807][  0]Logproject: GRPC 
C:\Projects\project\grpc2\grpc\src\core\lib\resource_quota\memory_quota.cc::463::1:
 
Removing allocator 0x792141afd8
четверг, 23 февраля 2023 г. в 12:34:46 UTC+4, Artem V: 

> Hi Richard. Yes this is censored ipv4. As I mentioned above 'domain and 
> target address are the same as in working Windows build'. Adress is totally 
> fine the problem is something else.
>
> среда, 22 февраля 2023 г. в 22:50:01 UTC+4, Richard Belleville: 
>
>> > ipv4:xx.xxx.xxx.xxx:443
>>
>> Did you censor the logs or is this really your target address? If this is 
>> not censored, then this is clearly not a valid ipv4 address.
>>
>> On Wednesday, February 22, 2023 at 5:44:52 AM UTC-8 Artem V wrote:
>>
>>> Greetings,
>>>
>>> We are trying to port our gRPC C++ solution we use for Unreal Engine 5 
>>> to Android. We use gRPC version 1.35 due to Unreal Engine restrictions. Our 
>>> loading process works fine on Windows but fails on Android with ‘Security 
>>> handshake failed’. I’ll appreciate any help to find out why this happens 
>>> and how can I fix it. 
>>>
>>> This what I can see in gRPC logs. “Bad address” error seems odd because 
>>> domain and target address are the same as in working Windows build. Please 
>>> let me know if you need more info.
>>>
>>> LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\tcp_client_posix.cc::143::1: 
>>> CLIENT_CONNECT: ipv4:xx.xxx.xxx.xxx:443: on_writable: error="No Error" 
>>> LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::470::1: TIMER 
>>> 0x78fe0e7d90: CANCEL pending=true LogPlayLevel: UAT: 02-17 16:23:05.434 
>>> 14296 14889 D UE : [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::719::1: TIMER 
>>> CHECK BEGIN: now=5010 next=9223372036854775807 tls_min=1410 glob_min=5013 
>>> LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14889 D UE : 
>>> [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::741::1: TIMER 
>>> CHECK END: r=1; next=5013 LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14912 
>>> D UE : [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\tcp_client_posix.cc::107::1: 
>>> CLIENT_CONNECT: ipv4:xx.xxx.xxx.xxx:443: on_alarm: error="Cancelled" 
>>> LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14889 D UE : 
>>> [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_manager.cc::188::1: sleep 
>>> for a 3 milliseconds LogPlayLevel: UAT: 02-17 16:23:05.434 14296 14912 D UE 
>>> : [2023.02.17-12.23.05:434][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::99::1: 
>>> handshake_manager 0x78fe5300a0: adding handshaker http_connect 
>>> [0x78fe540010] at index 0 LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 
>>> D UE : [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\tsi\ssl_transport_security.cc::226::1: 
>>> HANDSHAKE START - before SSL initialization - PINIT LogPlayLevel: UAT: 
>>> 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\tsi\ssl_transport_security.cc::226::1: 
>>> LOOP - before SSL initialization - PINIT LogPlayLevel: UAT: 02-17 
>>> 16:23:05.435 14296 14912 D UE : [2023.02.17-12.23.05:435][279]LogProject: 
>>> GRPC 
>>> C:\Projects\project\grpc\src\core\tsi\ssl_transport_security.cc::226::1: 
>>> LOOP - SSLv3/TLS write client hello - TWCH LogPlayLevel: UAT: 02-17 
>>> 16:23:05.435 14296 14912 D UE : [2023.02.17-12.23.05:435][279]LogProject: 
>>> GRPC C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::99::1: 
>>> handshake_manager 0x78fe5300a0: adding handshaker security [0x78fe36c800] 
>>> at index 1 LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::367::1: TIMER 
>>> 0x78fe530108: SET 21100 now 5011 call 0x78fe530138[0x7969167388] 
>>> LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::404::1: .. 
>>> add to shard 12 with queue_deadline_cap=6008 => is_first_timer=false 
>>> LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::129::1: 
>>> handshake_manager 0x78fe5300a0: error="No Error" shutdown=0 index=0, 
>>> args={endpoint=0x78fd80e780, args=0xb4000079c26c32e0 {size=9: 
>>> grpc.primary_user_agent=grpc-c++/1.35.0, 
>>> grpc.client_channel_factory=0x7920c00c20, 
>>> grpc.channel_credentials=0x7920510740, grpc.server_uri=dns:///
>>> api-studio.project.ai, grpc.subchannel_pool=0x796cd3b200, 
>>> grpc.default_authority=api-studio.project.ai, grpc.http2_scheme=https, 
>>> grpc.security_con nector=0x7920ed3200, 
>>> grpc.subchannel_address=ipv4:xx.xxx.xxx.xxx:443}, 
>>> read_buffer=0xb400007951a27c00 (length=0), exit_early=0} LogPlayLevel: UAT: 
>>> 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::176::1: 
>>> handshake_manager 0x78fe5300a0: calling handshaker http_connect 
>>> [0x78fe540010] at index 0 LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 
>>> D UE : [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::129::1: 
>>> handshake_manager 0x78fe5300a0: error="No Error" shutdown=0 index=1, 
>>> args={endpoint=0x78fd80e780, args=0xb4000079c26c32e0 {size=9: 
>>> grpc.primary_user_agent=grpc-c++/1.35.0, 
>>> grpc.client_channel_factory=0x7920c00c20, 
>>> grpc.channel_credentials=0x7920510740, grpc.server_uri=dns:///
>>> api-studio.project.ai, grpc.subchannel_pool=0x796cd3b200, 
>>> grpc.default_authority=api-studio.project.ai, grpc.http2_scheme=https, 
>>> grpc.security_con nector=0x7920ed3200, 
>>> grpc.subchannel_address=ipv4:xx.xxx.xxx.xxx:443}, 
>>> read_buffer=0xb400007951a27c00 (length=0), exit_early=0} LogPlayLevel: UAT: 
>>> 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::176::1: 
>>> handshake_manager 0x78fe5300a0: calling handshaker security [0x78fe36c800] 
>>> at index 1 LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc::1572::1: WRITE 
>>> 0x78fd80e780 (peer=ipv4:xx.xxx.xxx.xxx:443) LogPlayLevel: UAT: 02-17 
>>> 16:23:05.435 14296 14912 D UE : [2023.02.17-12.23.05:435][279]LogProject: 
>>> GRPC C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc::1576::0: 
>>> DATA: 16 03 01 01 3b 01 00 01 37 03 03 a7 82 6d 13 b6 68 b0 a4 fc 05 ca 2d 
>>> 5b 3f fb 81 c8 90 4e 38 12 35 5e 22 5d 68 b8 98 7b 32 c9 e4 20 c3 b6 58 bf 
>>> e0 3a 8a a6 f8 b3 7c 5e 04 da d8 6b eb 33 aa e3 9e 2f 60 08 4a e1 87 f0 5c 
>>> b8 92 60 00 10 13 02 13 03 13 01 c0 2b c0 2c c0 2f c0 30 00 ff 01 00 00 de 
>>> 00 00 00 1a 00 18 00 00 15 61 70 69 2d 73 74 75 64 69 6f 2e 69 6e 77 6f 72 
>>> 6c 64 2e 61 69 00 0b 00 04 03 00 01 02 00 0a 00 0 4 00 02 00 17 00 23 00 00 
>>> 33 74 00 00 00 10 00 0e 00 0c 08 67 72 70 63 2d 65 78 70 02 68 32 00 16 00 
>>> 00 00 17 00 00 00 0d 00 30 00 2e 04 03 05 03 06 03 08 07 08 08 08 09 08 0a 
>>> 08 0b 08 04 08 05 08 06 04 01 05 01 06 01 03 03 02 03 03 01 02 01 03 02 02 
>>> 02 04 02 05 02 06 02 00 2b 00 05 04 03 04 03 03 00 2d 00 02 01 01 00 33 00 
>>> 47 00 45 00 17 00 41 04 b0 53 f2 a4 ff 0a 5a 52 84 9e f3 76 5c d6 f5 ab 95 
>>> 94 31 d4 fc b8 06 05 9e 97 9e aa d0 f6 db 57 28 31 9b 88 88 d8 e7 5b 38 63 
>>> c6 a3 79 LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc::1622::1: write: 
>>> {"created":"@1676636585.435700264","description":"Bad 
>>> address","errno":14,"fd":152,"file":"C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc","file_line":1488,"grpc_status":14,"os_error":"Bad
>>>  
>>> address","syscall":"sendmsg","target_address":"ipv4:xx.xxx.xxx.xxx:443"} 
>>> LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\security\transport\security_handshaker.cc::184::0:
>>>  
>>> Security handshake failed: 
>>> {"created":"@1676636585.435747295","description":"Handshake write 
>>> failed","file":"C:\Projects\project\grpc\src\core\lib\security\transport\security_handshaker.cc","file_line":431,"referenced_errors":[{"created":"@1676636585.435700264","description":"Bad
>>>  
>>> address","errno":14,"fd":152,"file":"C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc","file_line":1488,"grpc_sta
>>>  
>>> tus":14,"os_error":"Bad 
>>> address","syscall":"sendmsg","target_address":"ipv4:xx.xxx.xxx.xxx:443"}]} 
>>> LogPlayLevel: UAT: 02-17 16:23:05.435 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:435][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::129::1: 
>>> handshake_manager 0x78fe5300a0: 
>>> error={"created":"@1676636585.435747295","description":"Handshake write 
>>> failed","file":"C:\Projects\project\grpc\src\core\lib\security\transport\security_handshaker.cc","file_line":431,"referenced_errors":[{"created":"@1676636585.435700264","description":"Bad
>>>  
>>> address","errno":14,"fd":152,"file":"C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc","file_line":1488,"grpc_status":14,"
>>>  
>>> os_error":"Bad 
>>> address","syscall":"sendmsg","target_address":"ipv4:xx.xxx.xxx.xxx:443"}]} 
>>> shutdown=0 index=2, args={endpoint=(nil), args=(nil) {size=0: }, 
>>> read_buffer=(nil) (length=0), exit_early=0} LogPlayLevel: UAT: 02-17 
>>> 16:23:05.436 14296 14912 D UE : [2023.02.17-12.23.05:436][279]LogProject: 
>>> GRPC C:\Projects\project\grpc\src\core\lib\channel\handshaker.cc::162::1: 
>>> handshake_manager 0x78fe5300a0: handshaking complete -- scheduling 
>>> on_handshake_done with 
>>> error={"created":"@1676636585.435747295","description":"Handshake write 
>>> failed","file":"C:\Projects\project\grpc\src\core\lib\security\transport\security_handshaker.cc","file_line":431,"referenced_errors":[{"created":"@1676636585.435700264","description":"Bad
>>>  
>>> address","errno":14,"fd":152,"file":"C:\Projects\project\grpc\src\core\l 
>>> ib\iomgr\tcp_posix.cc","file_line":1488,"grpc_status":14,"os_error":"Bad 
>>> address","syscall":"sendmsg","target_address":"ipv4:xx.xxx.xxx.xxx:443"}]} 
>>> LogPlayLevel: UAT: 02-17 16:23:05.436 14296 14912 D UE : 
>>> [2023.02.17-12.23.05:436][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\lib\iomgr\timer_generic.cc::470::1: TIMER 
>>> 0x78fe530108: CANCEL pending=true LogPlayLevel: UAT: 02-17 16:23:05.436 
>>> 14296 14912 D UE : [2023.02.17-12.23.05:436][279]LogProject: GRPC 
>>> C:\Projects\project\grpc\src\core\ext\filters\client_channel\subchannel.cc::1060::1:
>>>  
>>> Connect failed: {"created":"@1676636585.435747295","description":"Handshake 
>>> write 
>>> failed","file":"C:\Projects\project\grpc\src\core\lib\security\transport\security_handshaker.cc","file_line":431,"referenced_errors":[{"created":"@1676636585.435700264","description":"Bad
>>>  
>>> address","errno":14,"fd":152,"file":"C:\Projects\project\grpc\src\core\lib\iomgr\tcp_posix.cc","file_line":1488,"grpc_status":14,"os_err
>>>  
>>> or":"Bad 
>>> address","syscall":"sendmsg","target_address":"ipv4:xx.xxx.xxx.xxx:443"}]}
>>> ​
>>>
>>

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