I started to use the Beta under macOS 10.15.1, but at first it always restarted, saying that it has to work around this issue with the library. Then for some reason it started to work properly for some time. Now the behaviour appeared again. It is only occuring when the BCR is acually connected, when not, the program works with no problem, but I can not transfer presets obviously. I also cleared the midi environment in the Audio-Midi-Setup, but that did not help.