It appears that there is an issue when zooming in.
This is what I get.
OK

OK

OK

OK

NOT OK

NOT OK

NOT OK. ALSO, PLOT ALSO BECOMES INVISIBLE

I am aware that this is down to the submillimeter level.
However, users zoom like crazy sometimes.
It would be good to have the option to set a PLOT parameter to limit ZOOM IN.
Like MaximumZoomLevelValuePerPixel