So whenever I put my VM in full screen Parallels menubar will not hide completely, half of it will still be shown. When I hover my mouse to menubar of OS X, everything looks fine. This behaviour is only when I have my MacBook Pro 14" connected to any external monitor. My main monitor is a LG UltraFine 17" 5K but this also happens on different 4K monitors. Are there more people running into this and have a workaround?