The spells take many presses to cast in combat. Whereas, all my other spells cast as soon as I press the button. Sometimes they keep refusing to cast and I literally have to stop and stand in place to cast them. I’ve had to make a macro for both of the buttons so that they spam them otherwise they are completely unusable as far as tactical combat is concerned. They both feel extremely clunky as is.
I have had the same issue with Lightning Spear and it is quite annoying. I guess it is not widespread since I couldn’t find much else about it when Googling but sometimes I have to press the button 5-10 times before the spell actually casts.