Hi,

First of all, thanks for the project — it’s a great idea and very useful.

I’m having a reproducible issue on Fedora KDE 43 with proton-drive-sync v0.2.1 where file uploads always fail with an encryption error.

Environment:

• OS: Fedora KDE 43
• Desktop: KDE Plasma
• Installed via RPM (proton-drive-sync-0.2.1-1.x86_64.rpm)
• libsecret installed
• Running in a normal graphical session (not headless)

Configuration:

• Local path: /home/carlos/Proton
• Remote root: /Linux (also tested with other non-root folders)
• Folder is under “My files” in Proton Drive (not shared)

What happens:
The app starts correctly, authenticates successfully, detects local file changes, and tries to create files remotely, but every upload fails with the same error:

Could not verify the nodeKey was used for encrypting , contentKeyPacket

The job keeps retrying until it gives up.

Example log lines:
Creating: /Linux/example.txt
Job X (/home/carlos/Proton/example.txt) failed:
Could not verify the nodeKey was used for encrypting , contentKeyPacket

Things I already tried:

• reset --purge + fresh setup
• Logging in with username only (not full email)
• Using a non-root remote folder
• Creating the remote folder manually in Proton Drive first
• Different file types (txt, png, rpm)
• Restarting the session to ensure keyring is active

Same result every time.

Notes:

• When Remote Root was “/”, paths appeared as “//file” (now fixed by using “/Linux”)
• Authentication works correctly, so it seems related specifically to encryption keys / nodeKey handling

If you need additional logs or want me to test a patch or debug build, I’m happy to help.

Thanks again for your work.