Yeah, I tried all of the obvious tricks: copy-pasting from Notepad, no copy-pasting, restarting the browser, switching from Chrome to Firefox, and stripping out all of the optional stuff (tags, music, et cetera). I got a quick response from Tapas the last time this happened (for Chapter 8); I was advised at that time to paste from Notepad which seemed to solve the issue at that time. I haven't yet gotten a response from Tapas when the problem returned for Chapter 9.
So that I don't completely derail the topic, 402 also dressed like a scarecrow to ambush some lizards way back in Chapters 1 and 2.