1) I am having traces completely dissapear from view and then come back when I move my mouse
2) I am having a lot of flickering in the cursors 'cross points'. I have attached a gif below, this is just showing the cursor flickering.
You can see i have a whole bunch of logic in here. However, i dont think its always done this, it seems like a relatively recent thing (whatever release had the NaN region gaps).
I'm not sure where to start to diagnose and fix this issue. Any thoughts?
