I'm sure there are many other posts regarding this topic, but hear me out. I recently updated Project M 3.5 to 3.6 beta. I also play online so the Wifi Safe is the version I'm using. I go into the Stage Builder, PM boots up how it should (Black Screen then Start Screen.) After that, the screen stays black. I have a Wiimmfi file on the SD that makes it possible to play online as well. If anyone has a solution, please message me, Thanks!