Univention nextcloud 12 app maximum upload size

I am running 12.0.6 which was a recent update.
The server does not seem to be able to commit changes to update the max upload above the default 2MB
I saw some reports of this problem in the NC12 docker container being tied to a file permission issue from 6+ months ago, but it seems to have been fixed.

Is there something I need to do or is this a bug in this version?