I'll be honest with you, I'd be climbing the walls in frustration at this.
I run 0.25s in Dytac Invader midcaps and have no issues at all in my M4 (which started out as TM but now has a Dytac receiver - which may have some influence of course) and in my G&G SCAR-L. I have a buddy that uses Dytac Invaders with 0.25s in all 3 of his G&G M4s with no problem and another that uses them in his KAC PDW again with no issues. I realise that doesn't help you but if I was constantly being told "well they should be fine" I'd be getting pissed off too!