Board Thread:Support Requests - Getting Technical/@comment-46359344-20200810032756/@comment-168424-20200812182117

The last thing the OP asked for was to help delete mistakenly uploaded images...

So just so it is clear: undead-nation-last-shelter.fandom.com is a UCP wiki and therefore currently does not have Special:MultipleUpload.

Help:Multiple uploads actually says it doesn't work on UCP, but for newer users finding out if a wiki is UCP may not be obvious.