Joint Rotation issue in maya


Hey guys,
I am rigging a human like character in Maya,
I created a joint chain for arm and then duplicate it two times for IK and FK and then after hiding the base joint chain and the fk chain I created a RP solver on IK joint chain, I don’t know what I am doing wrong but the shoulder joint of IK and base Joint chain is having a rotation value of -0 (negative zero), please guide me to fix that and when I connect the IK handle to the controller with pole vector constraint the shoulder joint of Ik and base joint change is changing rotation values.