I set up Dropbox automation to "When files are added to [main folder], Then rename them to [YYYY-MM-DD - example filename.pdf]". Then, I tried dragging multiple files from my computer into the folder, using Chrome and then trying it with Edge. In both cases, the files just kept their original names. I cleared by browser cache in Chrome, and then tried it in Edge. Nothing has worked. I have seen no difference since adding automation.
I un-checked the box next to "Replace with existing dates detected in filenames" because I just want it to use the date of upload.