Forum on Android Chrome keyboard issue

Hi, I’ve noticed that when typing from my Android (7.1.1) on latest Chrome browser with Swipe keyboard it behaves quite strangely during comment autosave (or I think it’s related to autosave) - keyboard disappears and it took quite long until it shows again and often it ends with black forum page or some parts of it and I have to close Chrome tab and open new to get rid of it.

Did someone else also noticed similar behavior or I have to look to different keyboard/browser combination to find cause?