Self pace course issue

There appears to be a bug in the self-pace course. I have a habbit of using my keyboard to move the simulink blocks around, in particualr the arrow keys. When I do, the course crashes and locks me out of continuing the course. I have tried to restart as well as log out of the Mathworks account, however the issue remains.

Both my Simulink and the Stateflow On-Ramp courses are locked, meaning the See Solution, Reset or Submit options are not available, and therefore I cannot continue those courses.

[Torsten]

The answers forum cannot help in your case.

Contact official MATLAB support:

https://uk.mathworks.com/support/contact_us.html