I changed the chapter spanning marker to be the em dash and changed the text to reflect it, but it didn’t solve the problem. Could it because the verse references are within parentheses without the name or abbreviation of the book? That is, simply (21:1–22:1) I was able to “solve” it by making the chapter span marker thus: (21:1 - 22:1).
Update: I was also able to solve it by putting in the name of the book in the parentheses and going back to the hyphen like this: (Numbers 21:1-22:1) I guess without the name of the book, PT was looking at it as just numbers, rather than Scripture references?
But I would still like to know how to get Paratext to accept something like (21:1-22:1) or (21:1–22:1).