Some problems with "Floating Window" functionality:
*Elements in the floating window can't be configured in Layout preferences. If you click "Panel Settings" from the Panels Configuration window, you go to layout but you can't see the element's settings.
*Sidebar player ignores all settings
*Details panel ignores artwork settings (if this is intentional, it should be stated in the settings)
*Rating updates are entered but not shown in the panel.
*Artist link works but underline not shown. Album link doesn't work.
*When panels are tabbed, Playing/Selected button will switch once for each panel, but the label doesn't change and after that it is stuck. It will switch again if you move focus away and back, but the label still doesn't change. The label will update if you switch tabs.
*Graphical glitch caused on the right end of player and header bars when making the panel smaller (going bigger fixes it).