Signal Android does not save all media files

[vince-from-nice]

Bug description

I want to save all my media files (915 Mb, 2262 files) in one shoot but sadly not all of the files are saved, only ~30% !

Steps to reproduce

• Go to Data and Storage > Manage storage > Review storage
• Select Media
• Tap and hold on an attachment.
• Select all.
• Tap Save

Actual result:

A popup says the files are being saved to local storage. After many seconds, there's no more popup (and no error message). 692 pictures have been saved into Pictures directory and 17 videos into the Movies directory (I've cleaned these directories before the launch the backup).

Expected result:

I would expect to have all the media files saved and not ~30% only.

Device info

Device: Redmi Note 11 Android version: 13 Signal version: 6.39.1