I am unable to say if there is a problem with “Mac” UE5 versions.
The PC UE5 needs a version update to
Quixel Bridge 21.0.4 Update to Unreal 5.0 EA2 Epic Launcher Binary version
Every time you make a project you must load the Bridge Plugin.
If you have an old Bridge plugin in a project you must untick the box restart the editor and add the Bridge project again. This applies to all UE versions.