Did you also happen to have issues loading TR on MAC OS after updating the OS?
My last workout from the SuPB vol 1 was done yesterday evening. During the night my MAC updated and today I can´t load TR: I tried also via the terminal and no chance, for a fraction of a second a TR window pops up but can´t tell what it says, it´s too fast. Currently I am running Mojave 10.14.4. Attached please see a screenshot. Moreover TR is not figuring in the process list. Any help is greatly appreciated. Meanwhile I will try to do my workouts via my android phone and app.