Can't load Addressables in EditorWindow

I face the following problem. I use ScriptableObject derived classes for storing some data. I load these scriptable object assets via addressables. This worked fine on my desktop PC (Linux). As I am experiencing some issues with displaying Editor WIndows, I uploaded the project to GIT and downloaded it to my laptop running Windows 10. Suddenly, I can't load the Addressables anymore. The addressables are created via script through Editor classes. I tried loading them by their address directly and by label, which both failed. Am I missing a step, which should follow after downloading the project from GIT?