Factorio Forums

1) Put three belts in a horizontal line (see left side of the screenshot)
2) Place your cursor to the free tile to the left of them and start drag-placing (see middle portion of the screenshot)
3) Move your cursor to the right over existing belts (don't touch free space after them!)
4.1) Press R to initiate bend and move your mouse down
4.2) Alternatively, move the mouse down and press R

Expected: belt bends at the final point
Actual: belt bents at the starting point, where last piece was actually placed (see right side of the screenshot)

This is intended behaviour, the game only accepts the last belt you actually build, so it doesn't built the bend wrongly when you move a "little bit back".