tyMesher updating even though it's hidden

[ldotchopz]

I'm getting regular slowdowns (ie. after moving my time slider, but also sometimes when just navigating the scene or switching windows), because a tyMesher object in my scene updates, even though it's hidden. The status bar even says stuff like "Collecting input points", "Converting points into volume", "Post-processing volume", "Building mesh" and "Converting into Mesh".

I still get the same