What I expected to happen was...:
The piston would break the rail and push you along.
What actually happened was...:
There were two rails facing downward with no block to connect to.
Steps to Reproduce:
1. You place a piston one block above the ground and put a button next to it.
2. You place a block in front of the block the piston is on and put a rail on it.
3. You put two rails one block below the first rail and press the button.
Thank you for your report!
We're tracking this issue in MCPE-126899, so this ticket is being resolved and linked as a duplicate.
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