I have made a rigged human mesh with IK, weight paint and shape keys some weeks ago. But yesterday I changed the mesh a little bit (some proportions, e.g. made the legs longer, the arms slimmer) and than after I edited the mesh I have selected all vertices and propagated them to shape keys (vertex-> propagate to shapes), in order to apply the changes I made to the basis to all shape keys. But now the shape keys don’t work anymore. They just do not deform the mesh when they should, nothing happens. However the values at the right side of the shape keys (in the object data properties) still show up.
PS: the bones movement and the inverse kinematics still work just fine, only the shape keys don‘t work anymore.
Can someone tell me how I can solve that issue?