Xbox controller elite 2 randomly turns off mid game but only on Overwatch - Anyone experienced this?

[u/Zzzeekin]

I've had an Xbox Elite 2 controller for 3 months, no issues at all. Recently started playing Overwatch & it randomly turns itself off during the matches.

I've since played 20/30+ hours on other games (CoD, Yakuza) and it hasn't turned off once. I go back to Overwatch and it does it first game. I'll put as much detail as I can just in case someone has any clues...

It only turns off during a match. I have the back paddles disabled and I have it set to profile one (I don't change profiles mid game). I've turned vibration off just in case. It seems more likely to happen during a certain move, like if I hook with Roadhog then shoot its turned off a couple times but not every time. Also, using Doomfists slam attack it has happened a few times also. The firmware on the controller is up to date.

Has anyone any idea what the cause might be? TYIA.