Okay, so in this patch there was a bug fix I disagree with.An Issue wherein thaumaturges and black mages were able to cast multiple fire-based spells under the effect of "UmbralIce"From my understanding of the bug, it worked like this:
There was a slight delay between when you pressed a key and when the action was confirmed to have taken place server side via cooldown timers or whatnot showing. This allowed you to insert commands into the queue that should not have been possible. For instance, when casting fire 3 with the umbral ice buff on, if you were to resend the cast command at the right moment, the server would recieve a command to begin the cast with a timestamp *before* the umbral ice buff went away, but because of the delay in the server receiving/processing/confirming, some check that would refuse the casting of another spell while already casting had expired, so fire 3 is cast again, but with the umbral ice buff still applied.