Mounting faces clean and secure. The contact insert has a visible hollow on one side.

Was that hollow present on the original insert, or has it worn there?

Wear. Toolmaker compared it with the spare and found the contact shape had changed.

That sounds worth correcting before another point move. Who checks the old offsets afterwards?

Keep the worn insert identified with the service finding. If the replacement improves the grip, the shift handover should explain which program revision was checked with it, not simply announce that the gripper is fixed.

Matched inserts fitted, controls technician selected the documented pre-compensation revision for the supervised comparison. Testing still underway.

Repeated tray reloads now give square grips. Maintainer signed off the restored tooling and checked program together.

Thanks for naming the wear finding, Louis. Much more useful than another mystery offset.