Objects deform strangely immediately after clearing Bourne's transform

Hey.

I am trying to deform an object with an armature with IK set up.

I have finished the symmetrization and associated it with an object, but I noticed that the object has a strange deformation, different on the left and the right.

When I move the bones for the controls and then clear the transform, it looks like the attached image. After switching between edit and pause mode several times, the object returns to its original shape.

But I do not know the cause and solution of this strange problem. Could you please tell me how I should deal with this problem?

Right hand 1

Right hand 2 (move bone)

Right hand 3 (clear transform)

Right hand 4 (Objects are restored to their original state)

Left hand 1

Left hand 2 (move bone)

Left hand 3 (clear transform)

Left hand 4 (Objects not returning?)

check your constraints, probably the symmetrization didn’t work on those, so the check that has the same settings equally in the left side as in the right side…

Thanks!

I checked constraints.
Probably due to the rotating copy of the arm.

I wanted to smooth out the wrist rotation, but this method seems to cause problems like this one.

Therefore, instead of deformation by bone, try adjustment by weight painting.