Some Files Do Not Sync If Copied Into Dropbox Directory

[jmwright]

Some files will sync with Dropbox, but never show up in the STEMN desktop app or on the website.

I'm running Ubuntu 16.04 64-bit

Steps to reproduce:

1. Create a new blank project (public or private)
2. Copy an existing directory with a file in it into the project's root folder on Dropbox (file type doesn't seem to matter, I've used SVG and text files)
3. Check the project on dev.stemn.com (directory might be there, but file won't)
4. Create initial commit
5. Check the project on dev.stemn.com (directory might be there, but file won't)
6. Refresh the Changes view in the desktop app (file will not show up).

[jmwright]

The work-around for this is to open the file that won't sync, make a minor change, then save it. Then it will show up in the Changes list. For some files types this work-around will be very inconvenient though.