The fact it uses the standard “.entry-content th” and “.entry-content td” classes without modification for better specificity was the problem. I had other plugins/modified parts of my theme that messed with that, so it caused a clash (specifically, the text wouldn’t respect the margins I kept trying to input with Tableberg because it was following margins for something else that used .entry-content td). I’ve gotten around it now by using custom CSS and selector {}, but if I hadn’t known how to use CSS I’d have been hosed.
