it happened to me to when i cleanned a model i made; even if the bones are uneeded (i checked before deleting them) the model didn't wanted towork in my mmd so i had to let all the uneeded bones to make it work, i dont know if it's the same for you tho
even if the bones are uneeded (i checked before deleting them) the model didn't wanted towork in my mmd
so i had to let all the uneeded bones to make it work, i dont know if it's the same for you tho
i haven't tried
are there any unassigned ones?
if so, delete them
thats always the reason for me when that happens
<3