Agent chat window not opening up on the agent side when initiating chatDescriptionWhen Agent accepts the chat in Agent Workspace, chat window appears for a brief second but then instantly disappears, and there's no way for the Agent to communicate with the client.Release or EnvironmentAll supportedCauseThere can be several reasons, one of the reason is inactive/customized Out-Of-Box Business Rule 'Interaction - "Assigned to" changes' http://www.<instance_name>.service-now.comsys_script.do?sys_id=3a8421793b302300a0bd8cd834efc483 This Business Rule sends the agent's initial response message and adds the agent to live group profile.ResolutionRevert to the Out-Of-Box Business Rule on the affected instance, to resolve the issue. Revert a customizationAdditional InformationSimilar issue: Active Chat window disappears after agent accept the chat on agent workspace.