Custom Kernel Ez flash emulators won't load

Hi there

First of all, a big thank to the developpers for this custom firmware.

I'm trying to run game gear roms but it freezes each time. When i load the rom, it sarts loading the emulator and then freezes and i got a green bar and can't do anything.
It's doing the same thing with master system and ZX spectrum, haven't tried with other emulators.

Does anybody had the same issue?
Any idea?

Thanks in advance