Have been using Easy PC for many years, and having moved onto V21, I have noticed a number of differences (used V15 previously), when I have tracks on the bottom layer (displayed as blue) some of the tracks are solid blue, and others have a red line through them, why is this?, and how can I change this to solid blue?
I think you'll find that it's red (-ish) because the track isn't properly terminated (i.e. a Dangling track). All tracks must terminate correctly to remove this "error". (Also goto Display (rainbow icon) =>Settings & Highlights & check Highlights section to confirm).