mGalasy FE: Video doesn't play on all clones

[HHH]

Hi:

I use mGalaxy FE and i love it.
It's the easier FE to configure and runs flawlesly.

But I have a little problem with playing videos in mGalaxy.
An example with the game "Pang".

This game has 5 versions:
-Pang (bootleg, set 1)
-Pang (bootleg, set 2)
-Pang (bootleg, set 3)
-Pang (bootleg, set 4)
-Pang (world)

I have a video called "Pang.mp4" in "Videos" folder.
But mGalaxy only play that video when i stay on the game "Pang (world)"
when i star on the other 4 games, the video doesn't play

I used Maximus Arcade 1 year ago, i in that frontend, the video plays on the 5 versions of the game.

Is there a solution for that and the video can play on all versions (clons) of each game?

Thanks in advance