@KevinZheng_GCS It's not set. And this is the development environment and has one node only. Won't setting up a node type to "WebUser" suppress BackgroundProcessing queue processors (since there is only one node)?
It would. You can set -DNodeType=WebUser,BackgroundProcessing,Stream. In Pega Infinity, Stream is required for queue processing. What is your exact version (including patch version)? If this is happening consistently, please attach the entire log file.