Sliding panel not toggeling

Sliding panel is opening more sliding panels with each click instead of toggling.

https://drive.google.com/file/d/0B409lhd9sYDcUHRiay1SdDBhZDg/view

Can you provide any more information regarding your set up? In 9.5.4, the toggle function for sliding panels is working as expected. I’m unable to replicate what you are seeing.