Thanks for responding. We're cloud based and did not custom code this. 

We have the cloud instance. We noticed the issue the week of May 8, but suspect it started the first week of May. Then we noticed the new dialog box last week. Sorry, I don't have exact dates. And we originally opened a ticket with Adobe Support but the rep was not able to pinpoint the cause or rele...

Hi,  I'm trying to figure out the source to a mystery with our AEM instance. We noticed that the File upload warning disappeared for a few weeks, and up until about a week ago, we noticed the Name Conflict Warning box was popping up again, but with a totally different interface (UUID, existing file ...