I have to take that back. I tried it again today directly on mac and it works. The difference to earlier versions is maybe that the tracked images have to be exactly the same as the candidate images. So if the candidate image has transparent areas or white corners, then it has to be the same on the printed test paper.
Unfortunately, the remote build from windows to mac with ue5 does not work for me. https://forums.unrealengine.com/t/marketplacerules-dll-does-not-exist/566285 But that’s another story.
Greetings