Update the Linux app as well. A new encryption method is now enforced in the latest version, so you need to update all your clients now that the Android app is updated
OK I realised the problem is I must have initially installed Joplin using the AppImage from the downloads page, so I’ve been using that version from December last year the whole time!
Even though I have a separate version of Joplin being installed by the package manager.
The version installed by the package manager is in /usr/bin/joplin-desktop but the version I’ve been running (with a quick launch icon) is installed in /home/myname/.joplin/Joplin.AppImage.
Anyway, I guess I’ll just delete that version since I don’t need it. The version installed by the package manager is 3.3.13 and it decrypted everything. Also seems to sync much faster!
I have the same problem with Mac & Andoid. Any notes I create or edit on Android become encypted and unreadable on Mac.
I have upgraded to the latest versions on both platforms. Stiil the same.
In addition, on my MacBook Joplin has become unusably slow.
Many thanks for info or suggewtions
Just after i posted thie above Joplin itself popped up with a message saying I was using the intel version on a Mac chip, and gave me the link to the cortrect version. Problem solved.