Is anyone having the following issue with their Milwaukee M18 Fuel Circular Saw ? ? The unit is about six months old, bought new, and has worked flawlessly until recently when the blade just stops mid cut. Tried different batteries, blade, etc., nothing jammed inside the blade guard. I can hear the thing running slower than it ever has even before beginning a cut. The saw has never been dropped or banged around and the depth and angle of cut are both set correctly. Blade is tight on the tool. Tried some canned air inside the vent holes for the motor with no improvement. Lastly, the tool is being used correctly in that the base is in full contact with the wood and the speed with which I push the saw is not the problem. Just cutting 2 X 4 pressure treated wood. Any input greatly appreciated.