Issues Using a digitizer with Estimating 16.1 Windows 10

I recently set up a new station using 16.1 with a new GTCO Super L VI digitizer. The digitizer tests all confirm that it is working correctly. The conformation tone sound but the line only randomly appears on the screen. I've tried multiple pens and two different digitizers with the same results. So I'm pretty sure it's a software issue. GTCO support has exhausted all their knowledge.