Import button disappears – only appears on specific screen

Installed the plugin and it worked great. When I returned to use it again, the Import (from Dropbox) button is missing. Took some playing around with it but i found it only appears under certain circumstances.
Select Media > Add new = no dropbox import
Select Media > Library (with List view) = no dropbox import
Select Media > Library (with Grid view) = Dropbox Button works!
This is easily repeatable. Dropbox Import is only displayed when the Library is set to GRID view.