This bug can happen when placing a sand under the piston arm and a sand block to pull and push quickly. It may happen that the sand block moves to the wrong area.
MCPE-190633
Sand Block Phasing Through Solid Block When Pushed by Piston
Resolved
Duplicate
1
Ruanpablolopesbr
(Unassigned)
Unconfirmed
Multiple
Android 14
1.21.61 Hotfix
Retrieved
Please do not duplicate your own reports (MCPE-190631).