I put 2 skitters on Blisterbacks, after they took damage combat repair, engineer swarm and even regular engineers couldn’t fully heal them. Their health bar gets stuck at about 3/4 no matter how much you try to heal them. This happen to me twice. I am playing on xbox one in the east coast MD.
Im having the same issue, it used be the same way back after the blister back gained a veterancy level it would get glitched like that, but its health would heal up to a certain point it wouldnt go to full, however it would still heal to that amount, now you just cant heal the blisterback at all after you place a skitterer onto it. Playing on West coast PC