CrazyOneToo - Between this posting and your other one about this problem (
https://xoutpost.com/bmw-sav-forums/...-gremlins.html), there is a certain amount of cross talk going on.
Over the years I have been really impressed with the advice given by Qsilver7 - so I am happy that he at least thinks the ignition switch is also a prime candidate. By all means check with Scott at bmwgm5.com, but if Qsilver7 says the GM3 doesn't control hazard flashers and headlights, then I'd be surprised if Scott thought differently. Try what Qsilver7 is talking about with the sun visor. If that reproduces things then a new ignition switch is well worth swapping out. I understand about not wanting to be a parts swapper, but it's not very expensive and should take less than an hour.
Good luck.