Another update:

I tried to send a short message via Contacts>Send Message, and the phone tried to start the Messaging routine - but after maybe 10 seconds, the window was closed and the task aborted. What is that? Can this behaviour be related to the Ofono issues others have since updating?

Edit: as the journalctl screenshots say: sth seems wrong ^^ Is there a way for me to fix the ConversationPage.qml/commhistory issue ("no unique id" - why?) without having to set up my Jolla 1 again from scratch? Please help... ;_;

The multiple Error messages result from tapping on different Short Message conversations without any of those opening.