CoC disabling

When entering boss instances CoC keeps disabling and the only fix i have found is to alt+f4 then reboot game

Is this for PoE 1 or 2? I assume for 2, and if so, you're in the wrong forum. I'd make a new post there:
https://www.pathofexile.com/forum/view-forum/2214

In either case, be sure to include more information. Does only CoC disable or anything else? Is it only in the boss arena? What about Campaign boss arenas? What skill and supports are linked to CoC? Is it an issue of weapon swapping and losing attributes/spirit? Anything else relevant, and include a video if you're able to.