I unlocked level 1 from the quest with the kids just fine but have never been able to actually use the ability. I have it assigned to an action slot and I'm aiming at enemies with my bow but the icon never lights up for me to activate it. I unlocked level 2 as well hoping that would fix it but it didn't. I was hoping the newest update would fix it but it doesn't either. It's still unusable aiming at an enemy with my bow and I'd really like to use it

I know there is a bug where the ability doesn't unlock at all but I've unlocked Man's best friend and its lvl 2 upgrade but I cannot use the ability at all. No matter what, the ability stays greyed out. I know you have to aim at an enemy but it never lights up when I do. I've tried using it while undetected, during a fight, and when locked onto an enemy. Nothing will cause it to light up so I can actually activate it. Am I missing something?