Issues uploading HTML/CSS to Custom Character Sheet

Hey folks, I'm having some trouble with the Custom Character Sheet sandbox. I was able to get it working this morning but now I seem to be unable to upload updates to my character sheet. <a href="https://puu.sh/Jab3Q/47cdcd05e6.png" rel="nofollow">https://puu.sh/Jab3Q/47cdcd05e6.png</a> Here is a screenshot of what I get when I open the console. I keep getting 500s when I try to submit. I've tried deleting cookies and refreshing but that didn't work. I tried opening it up in Chrome only to have the same issue occur. I ended up deleting the original sandbox I had and made a new one which is what you see in the screenshot there.

I discovered the issue. I was using emojis as plain-text in the HTML/CSS and the Roll20 uploader wasn't having any of that I suppose. This issue's been resolved.

Thanks for making a followup post Sean. So are you able to simply copy/paste an emoji into your sheet code without issue?&nbsp; I did a quick test of pasting a heart emoji ❤️(<a href="https://emojiguide.org/red-heart" rel="nofollow">https://emojiguide.org/red-heart</a>) into my html.&nbsp; Appears to have no ill effects... in sandbox