Pokemon freezes

[Zeoka]

Hi guys. I'm playing the hack Pokemon Light Platinum on mGBA on my Macbook Pro with El Capitan osx. The thing is, when I try to evolve a Pokemon the game freezes. Can anyone help a brother out? I want a Wartortle.

Tim.

[endrift]

The game seems very buggy in mGBA, but this seems to work for me; can upload a savegame?