Menu entries don't show after installing a package
Every time I install a new package, I wonder why I can't find any of it's functionalities in the administration. I observed this with missing menu entries and sitetypes.
After clearing the cache via
./console clear-cache all items appeared.
This behavior is very confusing for users and should probably be fixed by clearing the cache after a setup or after installing a new package. Or is there a reason why this isn't done?