When using Trello from the Windows Store on Windows 10, the minimise button does not work as expected. When I hover over the button's rectangle, the area does not always become active by highlighting. Clicking also has no effect. My moving the mouse around in the rectangle, the button will activate and deactivate, despite the mouse not leaving the area.
The minimise button also does not show a tooltip, like the other 2 buttons. The maximise (tooltip- 'Full') and close (tooltip- 'Close') buttons do not appear to have this issue.