Conflicts file sync using desktop client

I´m using the desktop-client 3.0.3 (Windows) and I have some synchronasation issues.
I get the error message “sync error files” but when I press the yellow line - nothing happens.image

When I press the line to solve the coflict in the main window (I can´t get any screenshot for it closes when I shoot the picture) It just opens the file browser but I can´t choose which file I would like to keep.

Has anyone any Idea how to solve this issue?

This was a bug in this version I think. There are newer versions, in Settings in the general tab, it shows you available updates (I am on 3.1.1 right now).