Thanks Maxion. I think that your lock macros are actually one of the items that I had this issue with. I think I may click the buttons faster than you do, and I sometimes find my lock standing around doing nothing.

Here's what I think is happening: the /click macro is hitting the Conflagrate button again again again.. until all the commas are gone, and then it tries to cast Conflagrate. Problem is, it's not off cooldown yet, because I've burned through my commas too quickly. So now everything after the /click Conflagrate button fails until Conflagrate is ready to go again... including the Incinerate that I want her to keep casting.

That's fine - certainly many of the referenced threads and wikis talk about the importance of 'getting the commas right' - but they all talk about it in terms of dps, not in terms of "if you have too few commas on a spell with a cooldown, everything in your click macro after the clicked button will fail until the cooldown is finished".

Again, nothing that I've read addresses the question of a calling macro's response to a /clicked macro's failure. I had expected that a called macro's failure would simply /click the referenced button, and the calling macro would continue regardless, having already moved on after it /clicked: the macro succeeds at clicking the button, regardless of whether that button succeeds or not.

And yes, while undoubtedly many PEBKAC for this ID10T, ideally there would be a M for me to FR..