It is possible to break a piston moving a block upwards while standing on top of that moving block, as well as the block below the piston.
MC-204106
Blocks can be broken/placed through moving blocks
Resolved
Duplicate
0
Tim K
(Unassigned)
Confirmed
Redstone
20w45a
Retrieved
Hello! This looks to be a duplicate of MC-103071, which has been marked as Won't Fix.