Hello again! I encountered an obscure compatibility issue that was causing some incorrect display visuals, but I don't need any help with this at all this time--I already dug around, isolated the problem, figured out what it was, and solved it. ^^ I just wanted to post this here for no other reason than to chronicle what happened and how we fixed it, if anyone else is having this problem!
So, we were experiencing a text alignment issue where the spacing of the text itself seemed to get out of place for a single line or two when using alignment codes such as \align[center] from Eli Text Actions. In these screenshots, note how we used \align[center] to center this text, then printed the exact same line in the exact same font three times, but the first line displays longer (if you look closely, I believe the difference comes from a bit of extra space between the "1" and "2" characters specifically.)
The peculiar thing is that these are the same lines from the same NPC, in the same session, during the same test. It was the strangest case of... if you talked to this NPC, sometimes the first line would be longer than the second, and sometimes they perfectly lined up. Upon further testing, I determined that auto-skipping the text was what was causing it; when I was impatient and hit "Enter" in the middle of the text being printed to make the entire rest of the dialog print instantly, then it was misaligned, but if I waited for it to print at the default game speed without touching anything then it lined up perfectly.
Finally, the fix: If you're running any (and I mean any) VisuStella plugins, you're probably running VisuMZ_0_CoreEngine, since literally everything they do is built off that. (Going without the core engine would be like trying to use any Hakuen Studio plugin without Eli Book. ^^;) In the VS Core Engine parameters, look for a setting under the "Quality of Life Settings" category called "Font Width Fix" which is set to true by default (according to the plugin description, this "fixes the font width issue with instant display non-monospaced fonts in the Message Window.") Turn that off (set it to false). And viola, everything lines up now, whether you try to skip the text or not!
Anyway, like I said, problem already solved so no action needed on your part, but I just wanted to leave this here if anyone else was having trouble with this. ^^