We have only one node in Test Environment. We have truncated the data from all the cache related tables. And I explicitly removed cache from Rule Cache management through SMA. Also we removed Pega Marker file from server. Still facing the issue.
But the behavior should be same in the lower environment too right, its working in Dev environment. Initially we faced the same issue in lower environment too, after clearing the cache, the error has gone. But its not happening in Test environment.