Remaining km after finished the route went to more than 3000

I was finishing my tour today in NYC and after finishing the tour the remaining km jumped from 0 to more than 3000.
Attached a snapshot I took.

That’s metres, not kilometres. Still seems odd though.

I’ve seen this recently on routes where you get closer to the finish line by passing it or being closer (straight line distance) to the finish on the course. In the volcano flat route, I captured these two screenshots. First one is when coming out of the tunnel before the turn to downtown. There is still over 0.4 km left, but that’s what the distance shows. Then turn towards downtown and the distance progress bar is full and now there is still over 600 m left.

I’ve seen the same thing happen in London.