Simulation video cannot be played if it becomes Failed.
In the case of Failed, the state of the simulation cannot be checked, so if you modify the program so that it can be executed halfway, you will be able to check the movie.
If the program is still failed even after the program has been modified, the original settings may be incorrect.
After checking the Programming Manual, check once again whether it is written according to the specified command list, whether the template APK created by JAXA is used, etc.