Cant login to YouTrack Mobile while integrated with Hub

Hello,

i currently have a Hub Instance with YouTrack integrated. Authentication works fine on Web, but i can't login into the Mobile App. Whenever i enter the Server URL (project.XXX.com), i get redirected to hub.XXX.com (same as web), but after i enter my credentials i get redirected to the initial page where the Server URl is supposed to be entered.

I have 3 YouTrack Services in Hub: YouTrack, YouTrack Konnector, YouTrack Mobile. All trusted. YouTrack Mobile has the redirect Uri: 

ytoauch://landing.url

 does this need to be changed?

Permissions are also correct.

Hub/Youtrack Version 2023.2 (latest)

Also, YouTrack Mobile and YouTrack Konnector don't have licenses assigned. YouTrack does.