DL fails at 20%, I've tried sharing and having someone else save and it still fails at 20%. I've duplicated the file and tried saving the copy and that too fails at 20%.
I just stumbled across your post and figured it's been a while since this came up. I haven't been able to recreate the issue, but I wanted to check in case you're still stuck.
Sometimes, clearing your browser's cache and cookies or trying a different browser/incognito mode can do the trick!
Please let me know how things are going, as I'm here to support you in any way I can, and looking forward to hearing from you.