Hello AlmarzG92, Are you still experiencing video issues with this and all courses? Are you typing this question from the same computer and network you are experiencing issues with? Are you aware of any other people experiencing the same issues

I have a few ideas of troubleshooting steps you can try:

1. Log out and in again
2. Clear your browser cookies / cache and log in again
3. Try a different browser
4. Turn off browser extensions
5. Try a different computer
6. Try from a different network
7. Update your browser (and any plugins that are required)

Good luck and let us know if you find a solution.

Carlos