It's not a bug. If someone tells you "go left, but you can only move forward" - will you be able to do that? No.
When you move a sprite with pathfinding behavior, it uses "Rotate speed" to make turns. When rotate speed is 0, it can't turn and therefore can't move.
Before posting bugs for behaviors which have been around for ages, try to read the documentation first.
And your sprite3 doesn't appear because node index is zero-based, you need to start the loop at 0.