Weird effect of road width changing when rate changes

I increased the rate, and all of a sudden it had me skip a day! So weird. Look:

As you can see, the rate is now 2/day, I put one in for today (when the rate was 1/day) and now it says I don’t need another one tomorrow!

That’s right, the width of the road is a function of the slope. We discussed this previously actually: Request: Easy way to schedule a break for multiple goals simultaneously - #8 by drtall :

Yeah, I remember! This is just a weird effect of that particular “feature.”