Failed (?) install of 10.0.1 on Ubuntu & RPi 4

Hello all,
I’ve just finished installing Seafile 10.0.1 on Ubuntu Server atop a Raspberry Pi 4 and without any current errors. However, when I go to login there is obviously something very wrong. When I put in my user and password I goes to a blank page- here is my login page. Any thoughts?

Just a guess, but that looks to me like it isn’t loading the CSS parts of that page. Under seafile-server-latest, do you have a seahub/frontend/src/css directory with a bunch of files in it? Are they owned by the same user you are running seahub as?

Also, are there any errors in the seahub.log file?