As you can see in the video, slime blocks dont launch when surrounded by glazed terracotta, and when nothing surrounds them, they push you forward in the wrong direction, not just straight up
The second contraption has no secret wiring, just simple lever to redstone to piston
Thank you for your report!
We're actually already tracking this issue at MCPE-62419.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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