Both Modeler and Layout are crashing a lot with Sierra OS X 10.12.3.
Quiting and restoring Hub seems to help reduce the crash frequency a bit.
Did notice that tool bar menus tend to be “sticky” and don’t disappear after
selection of a menu item…usually followed by a crash.
Please note that I did not re-install LW when I upgraded to Sierra.
That may be my only option.
If someone has a better idea, please let me know??