iPhone 6s iOS 12.1.2 Game version 3.0.2 I was facing a Diamond Buzzkill with my Gold Xenomorph, in the Gold "Cutting Room Floor" PF. I had applied Doom to the Buzzkill so I was just turtling and taking advantage of the Perfect Block fight modifier, waiting for Doom timer to kill the Buzzkill. My Marquee Ability, Volatility, procced, and I got 10 seconds of invincibility (lucky!). I was like, "cool, I'll stop blocking and build up my meters, just in case". When I let go of the block and the Buzzkill hit me, I took damage. It's like the hits went straight through the buff. She killed my Xeno quickly (luckily the resulting 3 stacks of bleed let me win the overall fight). I don't know how this happened. I don't have video because who'd expect something like that to happen, and I doubt I can reproduce the scenario easily since buffs from Volatility are random. But it did happen. My Xenomorph took hit damage from a Buzzkill while having an active Invincibility buff. Not Heavy Bleed damage, mind you; actual hit damage.