yes now that you mention it…
I made sure my wheel pivot is in the exact center of the model, same for the sprocket and idler… but indeed when you look at it from the top view the center did not line up, so it is important that the pivots line up.
Still, looking at the images… I think the The spline coordinates do not match up.
-Open the spline coordinates array (R and L) in your blueprint and check if the Y coordinates all have the same value… they should.
-Check how many elements the array has (in my case 21), then look at the Tangents spline array and check if it has the same number of elements… it should…