From a Nukeproof Mega? I have them on the same wheels on a mega and not experiencing these problems. In fact if anything they were almost too tight to get back over the rims once I realised they came with tubes in them! No problems since going tubeless
<Loved the grip just not pumping tyre up every couple of hours for over a week> that’s not been my experience the. Poor rim-tyre combination maybe? Think the magi-x is fantastic on the front but gum-x not so much in recent wet days on the rear. TBF the weather has been really crap though.