Pokemon Emerald Epsilon hack freezes after meeting wally?

When you talk to Dad in the first gym, a movie starts where he sends you off with Wally and the game freezes as soon as you follow wally out of town.

I used the same original Emerald ROM as the developer according to the md5sum at romhacking.net:

http://www.romhacking.net/hacks/2917/

And then patched the game with ezgba-gui to play it on EZ Flash IV:

• Patch Save type to SRAM
• EZ4 Header Patch
• Correct complement checksum

I'm using the "flat" skin 1.77...

Pokemon Emerald Epsilon hack freezes after meeting wally?