iOS-webkit-debug-proxy' crashes when running script on hybrid App

Seeing this error while running test script which changes context from Native_App to WebView multiple times. This script was a working test script and started seeing this specific issue recently.

Unknown app_id PID:7200
Invalid message _rpc_applicationSentListing:
WIRApplicationIdentifierKey
PID:7200
WIRListingKey

Appium version 1.4.8
Xcode Version: 7.1.1

Any Suggestions on this? Thanks.