Bug Description

Piston can move a block or a pistonhead into the iris if the iris material is air

Reproduction Steps

• Place a piston facing towards the iris (possibly with blocks in between the iris and piston)
• Trigger the piston with a redstone signal

Desired Behaviour

The event should be cancelled

Observed Behaviour

The piston head, or blocks moved by the piston will move into the iris without issue

Trace Logs

No response

Other Information

No response