isChatActive is returning false on first return back to the app

When live chat is started from Zendesk chat and on clicking back button and on moving back to the app, the app is not showing the chat Launcher icon. The app is getting isChatActive parameter as false.

When going back to chat again and moving back to the app, then the app is getting isChatActive parameter as true and the Launcher icon is available with the message count.

Does anyone know how  to fix this?