In the relationship select elements, after option 6, you have a backslash: <option value="6">6</option>\ I don't see why that would prevent you from saving the page, but considering it's invalid HTML and Roll20 does do some validation on the files, it might be the source of your issue. It's the only thing I can see at a glance, and I'm sorry, but I don't intend to sift through 5,000 lines of HTML to give you a more accurate issue report. =) If you can supply a minimal, complete, and verifiable example that demonstrates the problem, I'd be happy to look into it further, of course.