I am surprised to see that there are no posts for cluster coordination issues for wM 8.0.1 version posted in this form.

Did any of you are experiancing these issues? We are applying Core Fix12 to resolve this. Did any of you applied the core Fix12

com.wm.pkg.art.error.DetailedException: [ART.114.722] Adapter Runtime: Errors occurred attempting to lock cluster coordination in shared cache for node: OTC2_E1_Product.Services.NotificationServices:insertF41002.
(Wrapped) null
at com.wm.pkg.art.isproxy.util.CacheFacade.lockEntry(CacheFacade.java:346)
at com.wm.pkg.art.isproxy.util.CacheFacade.containsKey(CacheFacade.java:134)
at com.wm.pkg.art.cluster.ClusterJobCoordinator.readCoordinationRecordWithErrorChecks(ClusterJobCoordinator.java:462)
at com.wm.pkg.art.cluster.ClusterJobCoordinator.openCoordination(ClusterJobCoordinator.java:214)
at com.wm.pkg.art.cluster.ClusterCronJob.openCoordination(ClusterCronJob.java:184)
at com.wm.pkg.art.cluster.ClusterCronJob.reschedule(ClusterCronJob.java:63)
at com.wm.util.Cron.run(Cron.java:481)
at java.lang.Thread.run(Thread.java:735)