Please check this snippet.
https://snippet.webix.com/aznnlsfz
Hello,
You need to call refresh() for the second sidebar: Code Snippet.
When toggling the first sidebar, its width changes, and then the second sidebar resizes as a chain reaction. By the time the second sidebar is toggled, its size has already been restored, so there’s no need for a resize to be triggered, as it would no longer affect the layout.