PC - Unbreakable Perk not working properly

Ember

Step 1 : Playing as Meg and running Unbreakable in public match

Step 2 : Killer downs Meg and puts in dying state

Step 3 : Meg uses recover ability and completes the bar, activating Unbreakable, just as the killer returns and activates the pick up animation

Step 4 : Meg remains in prone "dying" position, but is able to move around the map at a running speed, whilst in the prone position.

• This has happened twice now to me, both times on different maps with different killers.