If you're a team member, but you can't see the team shared projects, make sure:
If you still can't see the projects, it's because your path to the shared folder is different from the one set by the admin.
Example: a path set by a team admin can look like this:
~/Dropbox/companyName/icons
The app is looking on your device for the same path. However, on your device the path to the same folder is:
~/Dropbox/icons
On the app 'Projects' page, you'll find instructions to set a custom path and target the team shared folder.