Why my Fahz's Xray not benefit from Marcus active?

When Xray is active, i lose all auto aim effect, is it because PC have no aim assist or other reason?

After xray ended, auto aim work again.

Some cards collide with certain cards or ults and from the looks of it you were using Fahz’ reload card.

This same bug happens to my girlfriend and It seems to only affect PC players. I know its a bug because as soon as the xray ultimate ends, the aimbot works again.