Saw you were having an HTML issue and wanted to chime in since it might have been similar to the issue my team ran into and patched right before submission! We figured out that even if we followed all the submission steps, something the instructions don’t specify is that you have to change the text that you copied into the text file to plain text for it to actually register! There should be a format feature in whatever text editor you used to do that (or you can use an online tool), so it should be an easy thing to look up how to do!