I am currently using the 30 days trial version. The unlock duration is set to indifinit. After a certain time I can still see my files in ios files, but I can no longer save files there. In principle, it behaves as if the vault is locked. Only a lock and unlock allows me to save files again. That’s not how it should behave, right? (iOS 15.3.1)
Same issue here. Using OneDrive
A fix is already on the way! Just waiting for Apple’s approval.