Thanks for the video! I have this strange offset too. I’ll update this post when I figure it out.
Update:
It looks like the layer’s blend mode is additive and all the sublayers affect the “Roads” layer. The solution is to right click on the “Roads” layer and select the “Reserve for Splines” option, which will prevent the sublayers from affecting the layer. But layers on top will still affect the reserved layer, so make sure it’s the topmost layer.