From my experience and testing it affects all active Akashas, no exceptions.
On use, Akasha is deployed behind the character or not showing at all. Faulty use still turns on timer cooldown.
My guess is when active Akashas are not appearing at all, they spawn somewhere on the map but too far to work properly.
No idea what causes spawning behind characters. I suspected it to be a fail safe mechanic trigering close to walls or other objects but it also happens when there's plenty of space. Now I'm not sure if there is any pattern.
Please fix, it's super annoying.