Good Day,
 
I'm not certain if this is normal, new problem, or just noticed it, (or something Im doing wrong)
Zooming out in piano roll view, with magnifying glass in time line , once Im past a certain zoom out point, I can no longer zoom back in with magnifying glass, must go to bottom and use "+" to a certain zoom level to regain magnifying glass control? This doesn't happen to me in track view.
 
Cheers
 

This same things happens if I zoom all the way out using the smart tool and the ruler at the top. Once I am zoomed all the way out I cannot zoom back in without hitting the '+' key a few times.