Sticky connection configuration not working



We have 2 publish instance and 2 dispatchers configured for the same. Each time when we access the site, the request is going to different publish instance, which is breaking some of the functionalities like profile update. We have configured SCD , but is taking some time to get both instances in sync. I have updated the dispatcher configuration as below to make the sticky connection working, but it is not working. Please advice if I missed anything.

/stickyConnectionsFor "/content/**/en"