Auto sizing malfunction in multi-line text fields

I have a number of text fields that are multi-line data entry with the text size set to auto. These have been working beautifully until recently. Now, instead of autosizing the text over multiple lines to fill the space reasonably, the text gets squooshed and shrunk to fit on a single line that is far too small to read. I've tried toggling various features off and back on. I even tried creating a new template today in case it was simply a glitch with using old templates. Still getting the same issue. Is there a way to fix this?

I'm attaching screenshots from the authoring environment, signing environment, and completed agreement. For reference, the filler text I used for this sample is 102 words. 711 characters (including spaces).