Apparently it’s not just me either. Had someone else message me they can’t get the SNES stable on 0.84 when it worked perfectly fine before they updated. Now I can’t claim to know if 0.83 had the same problem as I never got around to checking that one, but the updates before then my SNES was working rock-steady. Now I have to shift a bit out of phase to get a picture to hold on 0.84. Something had to have been changed during the past few firmwares for my SNES to suddenly become so unstable on the OSSC.
I’ll try the alt build, but the point is something got “fixed” when it wasn’t broken to begin with, so people shouldn’t have to use alternate builds.