Transport bar vanishes

Hi,
I've found a small but tedious problem with QMidi: if I choose to hide the menubar (from System Preferences), the transport bar appears and disappears almost randomly; it seems that moving the mouse the window may appear but this doesn't always happen.
So sometimes I cannot immediately start/stop a song because I cannot find the button to click.
I cannot say for sure if this is a operating system or QMidi problem: I know that the transport window is something like a secondary window, but these kind of window disappears only if its application goes to background, while this problem happens even if QMidi is the frontmost application.
If I make the menubar visible, the problem is gone (and this is my solution for now).
Just to be clear, this is the situation:

while with menubar visible:

In both cases, QMidi is in the foreground.

Thanks for this very good app!

MacBookPro early-2008, OS X 10.11.6, language iT

Yes, this may be a bug. Somewhere I rely on the menu bar height to do the right things. Thanks for reporting.

Fixed in QMidi 2.7.4