Something to check when picking up the plate from the HHS with the CORE Paddles is to view the pickup from the side (left or right). The channel mount can contact your plate and not grip it well. So check that your labware definition, teaching, and grip height look good to where the pins are actually making good contact with your labware.
Another thing to check is the grip force under advance settings.
We move 500uL and 1000uL Eppf 96W plates on and off the HHS all day long. I do see some channel bending but we haven’t had to much downstream issues with it. Channel alignment needs to be checked and adjusted more often it seemed. We plan to implement switching different sets of channels doing the movement to spread the wear around.