The 'square mesh' draw mode appears unresponsive to 'wire frame size' property input - it would be great to get that fixed.
I have also experienced OSX system hangs when engaging 'point attenuation' with 0 set in the associated properties i.e. 'point constant atten',' point liner atten' and' point quadratic atten'. Over a certain 'horz resolution' + 'vert resolution' engaging 'point attenuation' hung OSX starting at 1920 x 1080 then reducing the resolution by half until it was around 240 x 135 before I could enter values into the associated properties. I know now to set the associated properties before toggling the 'point attenuation' on. As soon as the associated properties were set with a number the computer handled the parameter just fine - at least up to 1920 x 1080 resolution.