Fabrication 2017 v2.3

Anyone had your commands continually canceled, i can get a few in here and there, but in the middle of stretching a pipe or other command it's canceled, my command line states canceled after my monitor flashes....any clue ? I am not canceling them, yet imaged i attached shows them being canceled.

 new keybd doesn't solve, looked at command alias' for cruel jokes.......it is not consistent, does it for awhile then stops.

thanks

md