Every time I close the main Spotify window ("Hide from Taskbar when closed" is checked) and then reopen the window, the media controls that are visible on the Spotify Taskbar Preview are gone. When Spotify is restarted, this issue goes away, but will reappear once again if I close and reopen the window.
This affects Windows 7 and 8.
Steps to reproduce this (kudos to hammeh😞 1. Right click on spotify in the system tray and select Hide from Taskbar when closed. 2. Press the x in the top right corner of the spotify client to close it. It should dissappear from the taskbar. 3. Open spotify from the system tray.
After completing step 3 the media functions when you hover over the spotify icon will be gone.