i followed a Tutorial for a female Hand and everything worked well so far and helped me lot with Topology. But now i try to make the third finger. Sadly no they deform in a way i dont expect. I tried to do the Steps again but nothing change the Deform on the fingers.
There u see how the fingers should look like :)
Now how they deform:
My first Idea was that some Faces are missing but no. They dont like so in this view but they are there.
This all appears if i activate my subdivision Surface Modifier I checked for some crazy doubles but i dont found any doubles. I hope u have a Idea whats going wrong here.