RecyclerView gets GONE after clicking hide inside ExpandableLayout

[iRYO400]

Hi AAkira! Thanks for this lib. It helps me a lot.
I put recyclerView inside ExpandableLayout.
But it gets gone after I toggle ExpandableLayout and never become visible. Can you give tips about how to handle it, please?
Why I went with this way? Before, I put Viewpager with Fragments inside ExpandableLayout, and each Fragment contains Recyclerview. And it works well.