I’m not sure yet either. I’ve been able to reproduce it a couple of times (out of many). I’m working on a fix for it.
The other issue is that you’re getting them in the first place when it sounds like you shouldn’t have incoming conflict changes.
Does it only occur when using dropbox? Are you using any non-standard dropbox settings that may affect the way that your changes are saved or updated?
You might also try using the ‘polling’ option for checking file updates in Deepdwn’s advanced settings if you aren’t already. It’s a bit less efficient, but may help with this specific issue for you.