iOS 9.3.1 app cannot connect to Nextcloud LDAP user

Device: iPhone 16
OS version: ios 26.4.2
App version: 9.3.1
Mode: Connect to Nextcloud
Additional information:

I have OnlyOffice integrated with Nextcloud 33.0.3 and all my users are managed in Authentik over LDAP. The ios OnlyOffice app worked fine before I switched to LDAP, but now that the uids and home directory names are not the same as the usernames it will no longer connect. I get a red banner at the top of the app that shows briefly but is cut off so it’s difficult to read.

In Nextcloud there is an error message:

Login failed: ‘(uid omitted)’ (Remote IP: '(IP omitted)’)

App token login name does not match

It does this repeatedly until I remove the configuration from the ios app, and can cause the IP to be banned if I let it keep going.

One key piece of information I haven’t found elsewhere is that the desktop apps for Linux, Windows and MacOS all still work. It’s just ios that doesn’t. There must be some difference in the authentication logic between the two.

I know there are similar topics already but they pertain to earlier versions of the OnlyOffice application and the issue still seems to be unresolved.