Underground World - Turings Tower (Can't move platforms)

Please assist and explain what we are doing wrong. We struggle to move the two platform to cross the gap in Turings Tower. We have completed the lesson successfully

Now, that we return to program we cannot move the platform as explained in lesson

Tried 4 different browsers (firefox, chrome, opera & microsoft edge) and still the same problem in not being able to move platforms.

Am I missing something??

We are having the same problem. Commenting in homes that I’ll get a notification if there is an update to this.