okay so i have a theory about why lust and envy wont awake the sinner didnt have there real appearence why they commited the sin heres what i mean
Lust: was Cherubim Venomania but then he stole the face of his brother Sateriasis Venomania
Envy: was Kayo Sodou but then had her body switched with the body of Lukana Octo
if you have any evidence proving or disproving this please feel free to tell me