Dropbox is Changing the file name to UPPERCASE letters

Wasn't this already investigated via prior cases with others? Looking at those might show what the problem was and why it wasn't resolved. That would seem much easier than trying to go through the whole thing again each time with support.

I didn't follow that answer for OP and didn't see it as a solution at all. The conclusion ("there is no event that Dropbox can send to a Windows or Mac client that says "rename temp to TEMP") seems to exonorate DB completely. Is that what you meant?  If so, that precludes my following up on our issue, especially since Dropbox history doesn't even show any of it happening.

It would basically be me saying: DB must have done it, and you saying "Impossible."

Getting back to your temp/TEMP example, while I understand what you're saying about the impossibility of files by those names existing in the same dir in Windows, that's beside the point. We're merely talking about a file changing from one thing to another thing as humans see it. So, temp->TEMP or whatever, which is perfectly legal and supported by everything, DB included. We're not talking about temp and TEMP coexisting, and we understand that at a non-human level there is no difference. Keep in mind also that what I saw, at least, was DB reverting old changes that we made, not just up and deciding to do this to random dirs/files.

Looking at Ben's case would make sense, since it already exists.