Rigging : The object returns to the original position after I release the slider

Meruem3D

Hello Everyone,
            Today I encountered another problem while trying to rig a simple door... One can say I almost successfully rigged it coz it got to a point where the bones were inserted properly, the weights were mapped properly (I guess), and it even got to the point where when I move the slider the door moved with it.

Thats where the issue is, say I moved the bend slider 30 degrees to the right, the object moves along the path of the bone, properly, but when I release the slider, the object moves back to its initial position but the slider still remains at 30 degrees.... I don't know what's wrong or what I did wrong, can somebody please help me out? 

3WC

Save it, close Daz Studio, and then open, load, and try again.

Meruem3D

@3WC
I did try that, but its not working. 
Do you know any other possible fixes?