iOS apps (iPad and iPhone) cannot log in to NC

I’ve got problems logging in to NC formboth the iPad and iPhone apps
Using NC 31.0.6 and 31.0.5 both give the normal login screens
log in → grant access → back to log in screen

Does anyone recognise this? Is there anything obvious I can do?

The NC installation logs nothing very specific during the logon item.
(notning other than “Error Call to a member function getUID() on null”)

I’ve checed timezones and other obvious items, and everything seems fine

Any help would be greatly appreciated!

Yes there is a known issue:

Workaround: Create an app password (more on the linked answer).

@tflidd that did it in case of my iphone indeed. Trying on my iPad later on.

Which exact app version are you using? Version 6.4.4 has resolved some login issues.

Version 6.6.4 at the moment. The app pass worked, normal login does not.