Webconf restoring fails

Hello,
I backuped config and data. Restoring however fails. I can choose the zip-backup via Webconf. However, when pressing the Upload-Button, the restore-process doesn’t take place. It just returns to the “Backup/Restore-window”.

Maybe a matter of browser?

Guest-system is Ubuntu Studio 24.04 LTS
Browser is Firefox 128.0

Edit:
I used an iPad for backup/restore and this worked fine. Seems to be a browser issue.

What version of zynthian are you using?

I fetched last stable a week ago.

Can you be more specific? Maybe a screenshot from the webconf?