When using a piston style player booster with slime blocks, instead of boosting the player into the air several blocks, they are just pushed up as if standing on a regular block
Linked issues
Comments 2
Thank you for your report!
However, this issue is a Duplicate of MCPE-62419.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Related to MCPE-62419
Caused by the fixing of MCPE-53815