Defective programming. This has been documented for a 1-1/2 years. Solidly confirmed on Dead Ends. I have one right now that I haven’t had time to fix. There are work arounds for these, you have to be incredibly careful how you lay them out and map them in order. Don’t even think about remapping just one of a set. You have to redo them all or who knows what you’ll get when you run it.
And that’s what I hate about yarbo.
I have issues with S1, Could be fixed with dead end or sidewalks, but I am to afraid to try those, as I don’t need it causing even more issues.
I feel your S1 Sidewalk sentiment.