SQL Server FCI CSV storage flips multiple times into Online (No Access) state and eventually fails | Microsoft Community Hub (opens in new tab)

Dear Team,I'm encountering an issue with our SQL Server multi‑instance failover cluster after applying the OS security patches and restarting the second node.Once the second node comes back online, the Cluster Shared Volume (CSV) briefly flips multiple times into Online (No Access) state and eventually fails.(we can make it online manually, but again flips and failed after sometime).To make the SQL cluster available, we either need to shut down the VM or revert the patch.Before the patching, ...