Steps to Reproduce:
On an Android phone (both Release and Beta app affected):

1. open an article, then open the drop-down "quick facts" menu in that article.
2. now create new tab, open another article, there also open the drop-down "quick facts" menu.
3. now switch back to the previous tab/article.

Actual Results:
drop-down "quick facts" menu in 1st article closed itself.

Expected Results:
that menu should remain open as long as Android reports something like 400-600 MB free RAM.