I really appreciate the response; I also completely understand the macro limit per character. I will try to be more specific. Here is what I have observed: I have 5 characters on my account. I focus on my main; however, I do play all of them from time to time. I have created approximately 3-4 GSE macros per character, well below the 18 macro per character limit.
I have found that once I reach a certain number of macros spread across multiple characters (and those characters are under the 18 macro limit), I can no longer edit existing or create new macros. That is the crux of the issue.
I was just trying to find out if there was some type of limit to a file or function that would prevent me from editing existing or creating new macros after a certain point.