Hi
I am using layout 2015 on a mac. When i want to add label to drawing the program becomes unresponsive and i have to force quit everytime
I too have the same problem. Mac OS X sierra 10.12.1. It appeared when i first updated to sierra. Solved with first update, again got into trouble with second update 
Hi
I have now updated to SU 2016 and the problem has gone, it seems that it was a problem with the SU 2015 of which they never resolved.