After Kingston upgrade, on closing CTASK, change is not closing and issue occurs only in prod instance
The issue happened due to extended database lock time.
The active and close variables are related to a "Set Values" activity.
Looking at the node logs, There is a lock time in the database.
Due to this lock-out time, the active and close variables were not updated and therefore the change request remained open.
To resolve the issue, an index was created on the task table and it resolved the issue.