Not sure what model MyGica you’re using and probably doesn’t matter - was it working before and this is just ocurring now? I think this happened to me back when I used to use STB Emu and I think I fixed it by quicly entering into the settings before it fully loaded and had a chance to crash and adjusted my video settings. I dont use the emu anymore so I can’t advise what specifically I changed but if memory is correct this fixed it for me. If it doesnt help you, you can always try a reinstall if you havent done that already.
good luck
