Pachycephalosaurus Tail Model Issue

On mobile, the Pachycephalosaurus has tail model issues in its single rest and double rest poses

On mobile, when the Pachycephalosaurus uses single rest on flat ground, the rear section of its tail shows model issues. The glitch becomes more obvious after entering double rest. Please refer to the video for details.

The Pachycephalosaurus tail model should display normally without abnormalities when using single rest and double rest poses on mobile