Just checked, Windows XP,Windows Vista,Windows 7 to be checked in admin side, it need to be in a single value. Explode function will not work here, as there could many other usage where users many use a single value with multiple ,
Even if you upload same file repeatedly, previous one will not be removed from the list, you need to click [x] button on the right of the file and click update pot to remove it from the list ๐ .
This is because amp removed javascript from the link, so, for amp create a link template using <a href="[download_url]">[link_label]</a>instead of [download_link]
Probably it is a javascript conflict, you may try disabling bootstrap js from wpdm settings page, if that doesn’t resolve the issue, either you need to disabling any of the conflicting plugin or discuss with an expert to help you closely to resolve the issue.
