I have a similar issue with Tekla Structure leaning than other users:
I Just installed Tekla Structure Learning 21.1 on my computer.
The problem is that after installing the program it won't open, and I have tried to install Tekla multiple times. I don't get any error message either.
The program seems to start, with a first "presentation screen" (the screen with the logo), and then, suddenly, stops, disappears and nothing else... The "login screen" and the other screens of the tutorial video never appear.
I need your help. Thanks