Issue with .blendfiles on Unity Collab Project

Hey there,

ok. lets start with the problem

I'm having a Unity Project in Version 2018.1.1f1 and using Blender 2.79b, most of the 3D Assets are made in blender and directly imported to Unity via dragging them into the assets folder. So far so good. The project was setup and runs on several Windows 10 machines, using the Collab Feature.

Now to the core issue. After pulling the project on my MacBook (macOS High Sierra Version 10.13.6) all of the .blendfile Assets don't show up anymore. Reinstalled Unity and Blender both in with the identical Versions, like on the Windows machine.

While clicking on an .blendfile in the assets folder, blender opens and showing me the model. I thought saving the file on Mac OS X would do the trick, but after closing blender I get the following error in Unity.

Blender could not be launched.
Make sure that Blender is installed correctly and in your PATH.

Is there any way to see which path Unity is using to start blender? And even if I make a new .blendfile and drag it into the assets folder, I have the same issue.

Thanks in advance and best regards

- nad