Helium Rain Mod KIT: Music works in editor, but does not play the correct track in the full game

I have created a mod for Helium Rain where I substituted the music that came with the game with other music. The music loads perfectly when I launch the game in the editor ‘testbed’, but somehow still plays the music that came with the game instead of the one it should when using the cooked pak file.

My settings for the cooking include the engine content.

The new ship blueprints I made work fine, it’s just the music that refuses to play the new songs and keeps playing the old.

Any ideas on what could be causing this?

Thank you.

Unreal Engine 4.20
Helium Rain Mod Kit.

Bump !

It would be nice to see this solved thank you.