I just found out, that when you clone or copy a unity project (copy all project files excluding the folders: Library, Temp, Logs, obj) the addressable system gets broken. Meaning this should also apply to git.
If I open the copied project on another machine I notice that the references in the Settings file is broken:
Also if I try to use the Play Mode Script or Build dropdown in the Addressables Group window I get a null pointer exception.
I tried the fix described in this thread: [SOLVED] Import Addressables Settings - Missing and reimported the project multiple times to make sure the error is not on my end.
I hope someone can help. I’m using Unity 2019.3.12f1 and Addressables 1.9.2
Tomorrow was quite long this time. I tried if this would have any effect, but everything is still the same.
But I found the cause of all of this. It was a script that loads addressables inside the editor, see this post: