Music.bank question about transitions and freezes (no piracy!)

Hello Mates,

I know something about *.bank file format but have a problem I can't resolve with created Music.bank for AMS2.
In main menu when music is playing there are transitions of passing cars (original Reiza's file). In my case music stops when there should be transition and menu freezes for a time of length of my own music track. Transitions are present from time to time like it should be but nothing more.

I use FMOD PCM WAVE format (48kHz, 16-bit format).

I create my own music (or playing covers) and would like to use them in game.

If it's a secret from development point of view then I will understand it (I have no choice) but if you can give me some tips I will be really glad for help. It could be private message if you afraid about piracy (I can prove I am talking true).

Thank you in advance!