[Tails-testers] Test of 3.12~rc1

Hi developers,

thank you again for this awesome software. Most of my tests went fine:

- Updated existing 3.11 to 3.12~rc1 - OK
- Created new carrier from USB image (using Tails 3.11 and Gnome disks) - OK

- Startet both versions and created persistent storage - OK
- Tested Tor Browser, LibreOffice - OK
- Transferred files with OnionShare - OK
- Installed video converter ffmpeg - OK
- Converted 4K video to FHD resolution - OK
- Played videos and audios - OK

I had troubles with the additional software feature, though:

- Installed ffmpeg ("sudo apt-get update", "sudo apt-get install ffmpeg") - OK
- Chose to add this to additional software feature
- Rebooted - Automatic installation of ffmpeg failed
- Removing ffmpeg from additional software list led to error message
- Installed ffmpeg again ("sudo apt-get update", "sudo apt-get install ffmpeg")
- Rebooted - this time the automatic installation worked

Am I doing something wrong here?

Cheers
flowa