I get error decoding CKS cluster installation after upgrade from 4.19 into 4.21

[ahmadamirahmadi007]

2025-11-08 14:59:24,445 DEBUG [c.c.d.DeploymentPlanningManagerImpl] (Work-Job-Executor-93:[ctx-714cf072, job-60993/job-60995, ctx-b9d9e8f7]) (logid:eb39427a) Trying to deploy VM [error decoding VM instance {"id":3648,"instanceName":"i-2-3648-VM","state":"Starting","type":"User","uuid":"2ac6d25d-2f3d-40d8-bc0c-acd599154496"}] and details: Plan [error decoding {"_clusterId":null,"_dcId":1,"_physicalNetworkId":null,"_podId":null,"_poolId":null,"migrationPlan":false}]; avoid list [{}] and planner: [null].

creating instances separately is ok, but when I create a kubernetes cluster, it doesn't start worker or control node instances inside it.
Is there a problem somewhere in the database?

[vishesh92]

@ahmadamirahmadi007 Can you share more logs? It's most likely some configuration issue. You can ignore the "error decoding" part. I think it's a logging issue and not related to your problem.

[kiranchavala]

@ahmadamirahmadi007

Are you launching cks in an existing network or a new network

Could you please try restarting the network with cleanup option if its a existing network and check again by deploying a new cks cluser