Hi - I'm hoping to revive an old thread - I also see this error however the UI doesnt show any the sync target could not be upgraded
error and also I dont see any exlusive lock
errors either, it just seems to randomly prompt for needing a sync tartget upgrade.
My setup is using a webdav connection (I've disabled encryption for the time being thinking it was that) to pCloud - have attached an image of the sort of thing I'm seeing.