Origins: Adrenaline cannot be activated while fighting in water. Here's a suggestion to fix it.

I am guessing the reason you cannot activate adrenaline while fighting crocodiles in the water is you can't use the shield bashing animation while on water.

A simple fix would be automatic activation of adrenaline when it hits the meter. Or a different animation, perhaps Bayek yells while waving his sword instead of the shield bashing animation that's used on land.