Not sure if anyone who follows me uses Molly, the unofficial Signal fork, but it stopped delivering messages at some point today.
I've restored an automatic backup made at 08:12 this morning using the official Signal app, but have lost some messages.
I guess this is a PSA that Signal may be actively blocking unofficial forks now. Also, the main reason I used Molly, which was to install it on multiple devices, has apparently been 'solved' by the official app.