After running a setup for 2 hours my power drawbar stopped closing the collet for some odd reason during tool change, if I press the lock button on the pendant or the foot switch the collet closes fine. If I change a tool using PathPilot, the collet doesn't close which then drops my tool after tool change. When i press the collet close button under ATC tab it doesn't close the collet at all? Any idea anyone.. broke 2 endmill and ruin a part already. thanks in advance!