We have an issue where users are being load-balanced by the string value in the URL but sometimes they get sent to the incorrect service.
See attached content rule configuration and example service configuration.
This works the majority of the time but every so often a user will be sent to the incorrect service even though the session ID (string value) is correct. This causes the application session to break. The services are up when this happens and the same problem occurs on the same CSS with another sticky rule which uses sticky-src-ip.