cq:tags rollout issue.
Hi,
We have added some new cq:tags to parent and child pages and rolled out to live-copies by selecting "Rollout page and all sub pages". sometimes cq:tags are getting rolled out correctly to parent and child pages, but for sometimes cq:tags are not being rolled out to child pages.
We have also added "|tags" to this configuration file called "CQ MSM content update action" for "Excluded page properties" heading.

When we add this property "|tags" to this configuration via "/system/console/configMgr", we see this issue happening intermittently, but when we add this "|tags" via backend code, we do not see this issue.
Is it an AEM bug? (or) we are missing anything here.? (or) we need any bundle to restart to work this correctly? because we do not see this issue happening after the code deployment.
Thanks,
Ajay Boddu.