Icingaweb2 UI - CSS won't load?

Hi

For some reason, the Icingaweb2 UI - CSS won’t load on the second master. It is working alright on the config master.

I restarted httpd service but that didn’t help. Any ideas?

Thanks

most likely it is a module / library not updated correctly.
disable all modules and enable them one after the other, of course with their dependecies.