I’m not 100% sure this is a Zen Sets problem but there are errors in the system console from Zen Sets, so I’m reporting it here.
I have the Snap Measure add-on and when a measurement is set/active in the scene there’s significant lag but only in edit mode. See the video and take note of the FPS counter. Many actions will output the error to the console (and cause lag), including entering edit mode selecting a face, vertex, edge, scaling, rotating etc. While scaling the face in video the console was spammed with the error. When I disable Zen Sets the performance returns to normal.
Hi, it seems to be a problem in depsgraph_update handling in that addon. Because I see a recursion, it means that this addon changes every time something in Scene while application generate a modification scene callback. I am sure that if you disable Snap Measure addon, performance will also return to normal.
Unfortunately I do not have this addon to make a code review
Regarding to the warning in console, this old Blender issue, which does not affect on the performance of working logic
