Azure Cosmos DB: Vcore stuck in updating state during scaling operation

Problem description

I am experiencing an issue with my Azure Cosmos DB for MongoDB (vCore) deployment. The replica has been stuck in the 'Updating' state for approximately 3-4 hours during a scale operation to M60. This situation is preventing me from performing further scale or upgrade actions on the main cluster, and I need assistance to resolve this issue.

Environment

Azure Cosmos DB for MongoDB (vCore) deployment, replica set, no specific region or SKU details provided.

What I've already tried

I have reviewed the activity logs and observed that the scale operation initiated around 2026-11-09 15:00 UTC has not completed. No additional troubleshooting steps or diagnostic outputs are documented in the case record.

Current status

Currently, the replica remains in the 'Updating' state, blocking further scaling or upgrading actions. I am seeking guidance to determine whether the update is still in progress or if it is stuck, and to understand the next steps to resolve this issue.