[SOLVED] Authentication fails when creating new app password

To get it out of the way, I have the latest Nextcloud 11 installed on Debain 8.6 with Apache.

My issue is in making app specific passwords for use with the TOTP setup I have (Google Authenticator). Whenever I go to make an app password, it asks me to authenticate, but whenever I do it always spits me back to the same authentication screen no matter how many times I try. I’m certain that I’ve entered my password correctly and nothing shows up in the logs that looks conspicuous (at least to me); is there any troubleshooting steps I can follow or have I just found a bug?

Pictured: the authentication screen after clicking “Create new app password”

EDIT: The problem solved itself. Very strange…

I have the same problem.
Nextcloud 11 on a centos 6 server, apache
TOTP active