Minecart Not Pulled Back By Sticky Piston When On Rail

When a minecart is on a powered rail, and the rail is pushed by a sticky piston, the minecart is also pushed.
When the sticky piston is retracted, the minecart should be pulled back, on top of the rail.
This isn't happening; the minecart is moved slightly, but left behind.

I'm on PS4, latest version. Single player survival world.