Hi, I've got a Surface Book (the original model) and it's developed an issue lately where the screen sometimes stops responding to the pen. The eraser button still works properly, but I'm unable to interact with the screen using the pen. (Touch generally works as normal.) Rebooting eventually fixes the issue. Is anyone else running into this? The problem is definitely not my pen (which has fresh batteries): my pen works fine on other Surfaces, and when my screen stops responding to pen input, other Surface pens won't work either. Is anyone else seeing this issue, and does anyone have any thoughts about the cause or how to fix it?