In the screenshot above, my Real Estate folder on the right (a dropbox folder) isn't showing the littel blue folder icon. It isn't affecting anything functionally yet it just drives me crazy every time I see it. Is there a way to get it to show?
First verify from Finder>View>Show View Option>Show icon Preview
If that is check, toggle it off and on.
If no success
Open to the Preferences folder of your home directory, or from Finder>Go>Go to Folder, copy & paste:
From the Finder icon on the Dock, hold the control option key and click the Finder icon>select Relaunch.
If that doesn’t work try updating our Dropbox.
I found someone with a similar problem online:
I contacted support via chat, and they helped me understand that the dropbox version was outdated. now updated and it's working. thanks!