Hi Kerry,
I had this same issue as well. Turns out it has to do w/ the tool you're trying to use getting "forced to the background" or something like that... that was the explanation I found. To bring your current tool forward, press "ctrl" + "shift." You should see your cursor switch from what it is stuck on, to the tool you currently have selected. It may not be an indefinite fix, but I hope it helps!
