I just realized that my mods didn't set stiletto plugin root vec correctly, so that in maingame and maker, chara will float from the ground.
Here is the fix version of these mods. If you are a maingame player, you can choose this new fix version.
CAUTION: If you are a studio player like me, you can ignore this fix version. But if you use this fix version, be careful that your chara's location in the existing scene save may be changed (should be moved to the ground more than before)