https://bugs.kde.org/show_bug.cgi?id=481630

--- Comment #6 from Beto Kella <betoke...@gmail.com> ---
Was able to reproduce the error as described in the bug with an album of 
27 pictures. It is a mix of situations: some pics you can retrieve faces 
by reading metadata, others you don't. I believe tags will disappear or 
not depending on your tags structure. This time, tags didn't disappear.

After fixing all faces/tags I wrote metadata to all files, and to my 
surprise, faces disapeared in some pics and reading metadata didn't 
help. My settings are to write face tags incl face areas to file.

All JPG coming from iPhone SE 3rd Gen (in this case). But sure affect 
other cameras since I had the problem with Canon camera images at least.

Will work to get a debug log.

/Roberto

On 2024-02-21 12:57, Beto wrote:
> I will prepare to do that with latest weekly 8.3 snapshot.
> 
> But...
> 
> Running tests now in 2 albuns with half a dozen pictures (PNG and JPG) I 
> could not prove metadata is being written to files. The face rectangles 
> are still missing in some images after changing tags but reading the 
> metadata recreates them.
> 
> When I first stumbled on the issue I had changed tags in hundreds of 
> files. So it can be that both occurs for I have checked a few images 
> with exiftool and tags were missing on the files.
> 
> Will need to test on larger albums with the nasty effect that I loose 
> faces/tags that I need to either save somehow in beforehand or recreate 
> manually :(
> 
> Thanks for now.
> 
> /Roberto
> 
> On 2024-02-21 12:13, Maik Qualmann wrote:
>> https://bugs.kde.org/show_bug.cgi?id=481630
>>
>> --- Comment #4 from Maik Qualmann <metzping...@gmail.com> ---
>> There are actually no changes in the relevant code parts compared to 
>> 8.2.0 that
>> could cause this problem. Can you narrow it down to specific images or a
>> specific camera/image format? Maybe a debug log from the terminal 
>> would be
>> helpful if the problem occurs, as described here for macOS:
>>
>> https://www.digikam.org/contribute/
>>
>> Maik
>>
>

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