The issue with share URLs not showing the QR code page should be fixed now.
Share URLs generated within the last couple days will no longer work, so make sure to delete those and generate new ones as needed.
Also, old share URLs should be fixed as well.
We're still working on the iOS redirect issue, so hang in there.
If you're still having issues with newly generate share URLs, please let us know so we can investigate.
It looks like this is browser cache related. If you clear your browser's cache or open the link in another browser, you'll be taken to the correct page with QR code.