Are you using merge fields to print/pdf? If not you might want to try using a merge field. Also might try another font. I seem to have good luck with Helvetia neue. Fmgo does not have a print engine. It relies on the iOS for printing. I find little differences in printing when using different iOS versions. You will find differences when printing/pdf between fm pro and fmgo.
It looks like using a merge field solved the problem. Apparently sliding fields do not reliably understand where the text ends on the iPad. That's a discouraging bit of information. (I could not stick with the favored fonts, because the client wanted a specific font for their form.)
Thank you R. Gordon!