Makuri - castle to castle

Just before the 12.7 km mark, the route progress bar disappeared. I think that was either the start or end of dirt section

Luckily I knew the distance of the route so I continued & got the badge. I was not sure I would, but the directions suggested such. It’s saved on my zwift profile if that helps

I observed the same issue in other Makuri route (Temples and Towers).

Apparently the route progress bar disappears when you transition from the rural area to Neokyo (near the tunnel).