Dupes stuck in a loop

I had this issue as well a while back. I didn't take pictures of it or anything, but I do recall it happening.

I think I fixed it by digging out one of the blocks they kept jumping between, but it was annoying. Only has ever happened to me once though.

I have a similar issue in my game, which I think is probably caused by the same bug. In my case, the dupes get stuck while they are on their way to build some tiles. And just like ChocolateDogFood, they just ignore any orders to move. In fact the only thing that seems to free them is cancelling the build order.

 If you click on them, it looks like they might be stuck trying to decide between two possible routes to reach their destination, and are continuously alternating between them:

 

I've attached a save file, and here are the reproduction steps for that save file:

-load the save, let it run on its own for ~30 seconds on the fastest speed.

-After Pierre is done eating, the duplicants start delivering the sandstone to the tiles to be built on the bottom left of the base. Any duplicants that choose to take the lower route get stuck in a loop moving between two tiles until they suffocate.

tgc4-7-1 Cycle 94.sav

Edited March 3, 2017 by Spire