I use Snip & Sketch to copy and daily sudoku and use the pen and eraser to work it. In the last month, when I switch from pen to eraser Snip & Sketch often takes about 30 seconds to switch modes. It always catches up but it is very annoying. My computer is an I9 processor and 64 gig of ram so it is not any problem with computer resources. Task manager shows no excessive CPU. No problems with other apps. Any suggestions?