Homebrew Gameyob Warlocked problem

[romanaOne]

I was trying out the GBC game Warlocked on Gameyob and there is a strange problem: you can never get to the second mission. You build 3 farms (Yes, this game is basically Warcraft for the GBC) and NOTHING HAPPENS!?

I tested the same ROM on my PC with mednafen and the mission instantly ends when you complete the third farm.