As a first step to isolate the issue, I'd highly recommend that you install our latest stable version of the Dropbox desktop application.
To do this, you will first need to follow these steps to verify that you have opted out of "Include me in early releases" option in your settings on Dropbox.com. This will ensure that the application does not automatically update to the beta build after you install the latest stable build:
Once you install the stable build, it might take some time to re-index the files and sync any pending changes.
Please let me know the results. Thank you.
PS: If you'd like to provide feedback about a specific build of our desktop app, you can browse our "Beta Testers" section and leave your comments below the version's release notes. For your convenience the link below is the one from the version you're currently using (65.3.174):
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