Players' Hitboxes in Inventories are Not Correctly Shown Starting from 25w15a

In 25w15a, players' hitboxes in inventories are not correctly displayed, but at least there are lines of different colours; starting from 25w16a, players' hitboxes are NO LONGER shown in their inventories even I’ve already pressed down F3+B to show entities' hitboxes. The problem I mentioned above happens in all non-spectator game modes.

STEPS TO REPRODUCE

1. Create a new installation which is released AFTER 1.21.5;

2. Create a world and enter it, then press down F3+B to show entities' hitboxes;

3. Create a world in 1.21.5 and enter it, then press down F3+B to show entities' hitboxes.

EXPECTED RESULT

Players' hitboxes are correctly shown as those in version 1.21.5.

ACTUAL RESULT

In snapshot 25w15a, players' hitboxes are not correctly played after pressing down F3+B, while starting from 25w16a, players lose their hitboxes after pressing down the exact same keybinds mentioned above.