Novalissoide actory reset GrapheneOS. Something is causing this and it sure isn't normal.
Have Adb, Shizuku, tweakUI, or Developer options been in use at any time?
Is your device auto-updated?
sorry just seen this post, I haven't used any of those things I'm thinking a device reset is the only cure too, although, I'm quite happy not using vanadium I am concerned that there is something "wrong" with my operating system.