In certain instances, mobs can clip through tinted glass. I've observed this in two ways:
1) In a trident killer, the pistons will sometimes push a spider or skeleton through tinted glass that is a apart of the outer wall of the trident killer.
2) I had a zombie and a zombie villager in a boat which was sitting on top of a tinted glass floor. When I broke the boat, the zombie villager clipped through the tinted glass and fell below while the zombie and the boat item stayed above it.
Comments 3
The issue with spiders is due to MCPE-153431.
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
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Can you upload a video of this happening?