Elements are not discovered in chrome custom tab under android

My app authenticate via WebView and custom app.
What I see is WebView is opened where login is requested, and if user selected third party login Chrome Custom Tab is opened.
In inspector I cannot find any of elements this View.
It looks this way

I’m not sure is it WebView or Custom Chrome Tab

When I try to switch context I got:

{WebDriverException}Message: An unknown server-side error occurred while processing the command. Original error: unknown error: Chrome version must be >= 53.0.2785.0
  (Driver info: chromedriver=2.25.426935 (820a95b0b81d33e42712f9198c215f703412e1a1),platform=Mac OS X 10.12.2 x86_64)

However Android Chrome is version 55.

On real device WEBVIEWs doesn’t exist and I cannot switch to it.

What are suggestions maybe to cope with this scree? I’m really stuck.
Locally I use appium 1.6.3 and for CI with Real Device appium 1.4.16.

On real device it looks as


Am even I also facing the similar issue right now? Did you find out the solution for this?