i'm having that issue as well. it exports a pose that doesn't match up. it exports as the pose (arms to the side, fingers slightly curved. idk what it's called) instead of the pose that's exported from DAZ. if i export the FBX from DAZ as a T-Pose, the exported OBJ is in the proper (but still not correct, hands and feet are not zeroed, as in still curved and the thumb is bent weirdly) A-Pose.