I had only been using neomutt about 10 minutes.
desktop(~)$: uname -a OpenBSD desktop 6.9 GENERIC.MP#4 amd64 desktop(~)$: desktop(~)$: egdb neomutt neomutt.core GNU gdb (GDB) 7.12.1 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-unknown-openbsd6.9". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from neomutt...Reading symbols from /usr/local/bin/.debug/neomutt.dbg...done. done. [New process 219515] Core was generated by `neomutt'. Program terminated with signal SIGSEGV, Segmentation fault. #0 mutt_addrlist_clear (al=0xfca5fbb0800) at ../neomutt-20210205/address/address.c:1476 1476 ../neomutt-20210205/address/address.c: No such file or directory. (gdb) bt #0 mutt_addrlist_clear (al=0xfca5fbb0800) at ../neomutt-20210205/address/address.c:1476 #1 0x00000fc83bba3056 in mutt_env_free (ptr=0xfca77d726a0) at ../neomutt-20210205/email/envelope.c:103 #2 0x00000fc83bba265c in mutt_body_free (ptr=0xfca77d72e78) at ../neomutt-20210205/email/body.c:94 #3 0x00000fc83bba2669 in mutt_body_free (ptr=0xfcad9f89d50) at ../neomutt-20210205/email/body.c:95 #4 0x00000fc83bba296a in email_free (ptr=0xfca8b9dad00) at ../neomutt-20210205/email/email.c:54 #5 0x00000fc83bad5792 in update_tables (ctx=<optimized out>) at ../neomutt-20210205/context.c:288 #6 ctx_mailbox_observer (nc=<optimized out>) at ../neomutt-20210205/context.c:316 #7 0x00000fc83bbba6c8 in send (source=0xfca77d6f420, current=0xfca77d6f420, event_type=NT_MAILBOX, event_subtype=8, event_data=0x7f7ffffe9660) at ../neomutt-20210205/mutt/notify.c:122 #8 0x00000fc83bb99fd2 in mailbox_changed (m=<optimized out>, action=2342401728) at ../neomutt-20210205/core/mailbox.c:190 #9 0x00000fc83bb0c825 in mx_mbox_sync (m=0xfca8b9f3e00) at ../neomutt-20210205/mx.c:1057 #10 0x00000fc83baed3e2 in mutt_index_menu (dlg=0xfcad9f89e00) at ../neomutt-20210205/index.c:2061 #11 0x00000fc83bafa799 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at ../neomutt-20210205/main.c:1238 (gdb)
