Hey @phl Sorry to hear that you faced this.
Before concluding anything, I would like to understand your Umbrel Setup. Are you Umbrel Home user or your are using UmbrelOS with Raspberry Pi/x86/VM.
If you can add further to your response, what commands or procedure you followed to update UmbrelOS.
These details will help Umbrel Team to quickly conduct tests and fix if any issues persists.
I hope you followed the guides shared by @mayank here: How to update to umbrelOS 1.0
Thanks.