Picture this. I am red. There are 5 lower level yellow players coming at me in IC. I pop Corrosive Armor, figuring I can take at least one of them out before having to reposition. I pop an Immovable potion as well. It makes the potion sound. The potion icon, however, stays active. I try again. Nothing. And again, having ignored combat for 1 or 2 seconds. Whoops, sorry, nice try, I'm dead.
It's been like this forever. The potion key is just so <expletive deleted> unresponsive. When I first started playing the game, I thought this was a bug. These days, there is a little timeout on the potion icon, which seems to happen after having used other abilities. Actually I'm not sure what sets the timeout off, and it might be the FTC addon displaying that. I am sure, based on prior exprience without addons, however, that the addon is not the cause.
So how about it ZOS? This potion key lockout, or whatever it is, is just plain stupid in my opinion. It makes the game feel buggy and unresponsive. I see no reason for it. To be clear, I am not talking about the 45 second timeout. I am talking about a small, maybe 1 second timeout that locks out the potion key every time you do something else.
I understand there is a global cooldown for abilities. However, when I activate 2 abilities, maybe with a light attack inbetween, they DO activate much more reliably than this blasted potion key.