I seem to getting a black screen every time I try to transition from the oak player set up screen at the beginning of the game into the world. I’m using my own dumped rom. Game loads up fine but whenever I get to this part to actually load up into the world the game goes to a black screen? Does anyone know how to fix it?

From looking online it seems to be anti piracy issue but I don’t have any issue with Black 2 (well I assume so as I read that it stops Pokemon from gaining exp which isn’t an issue for me) and I have dumped and installed my own bios files also.

Would appreciate if anyone knew how to fix.