Hello; Sorry for taking such a long time to get back to you, but I was finally able to test out those cores. Or at least, attempt to test them. I first tried to load the cores with RA 1.0.0.2, but when I loaded up any of the experimental cores, the cursor would freak out after it was loaded, and would then not be usable, even if I unplugged the classic controller. So, I tried loading them up directly. With this, I could now start the core, but once a game was loaded I couldn’t actually do anything and I had to shut down the wii.
However, I’ve made another discovery regarding this bug. I’ve been able to pull it off consistently, so I decided to try it in other cores using the last working nightly build. The bug can be triggered in mGBA, Mednafen PCE, FBA, Genesis Plus GX, and Prosystem, which leads me to believe that this effects every core, not just a handful.