Mercy Resurrect and Valk Bug

I’ve encountered two Rez related bugs so far, the first one happens quite consistently:

When Mercy tries to rez someone who is about to respawn, she will start the animation, but the person will respawn instead. The animation therefore cancels. If you’re super unlucky, rez will also go on cooldown, as you “canceled” the rez.

The second one happened for the first time today and I wasn’t able to recreate it. I tried to rez someone, but neither the animation nor the ability itself went through. Instead rez just simply went on cooldown, without anything happening.

As you can see in the video, not even her hand leaves her staff, which happens when the first bug occurs.

Oh and btw if you melee and use Valk during it, the first person Valk animation won’t show.

Also if you get EMPed mid Valk animation, it can sometimes happen that Valk gets interrupted (which shouldn’t be the case as far as I know, as it counts as a transformation Ult, which aren’t interruptable).
You will get back your 100% ult charge, but the first person Valk animation will go through, which is pretty confusing as you may think you’re in Valk, while you’re actually not.