u/Leeeee85

I tried using a single expression to create blend shape and it comes out with same problem, only the envelope can set key. The body is not bind skin yet. What I done are clone body base, make expression mouth and eye separately, select all and the original body, and the expression do appear on the original body. Then I stucked at the set driven key. Anyone know what happened😭thanku so much if letting me know what may be the reason.