Thank you for your swift reply!
I could understand the reason of my trouble by your reply.
I looked into the rotations of the main controller in x and z. But rotations of x and z were zero.
Anyway, I will look forward to be modified this in next version.
Thank you for your great jobs. I love this plugin.
But, I have a trouble with "cam" setting of version 54.
In a pose I press "update cam" and sotre the Cam position. But, the Cam position restored is far below when I restore the pose.