Riftvalley, I have just (literally just) installed Textart and played around with it. Yes I have the same issue and XWDP 16.1 throws 'Internal Program Error 4304.k.no.ct'. It means nothing to me of course, but you never know what others here have stored in their knowledge banks.

We can stop looking suspiciously at poor Betty too. I don't have Betty Noir installed.