Migrating a kubernetes cluster to another instance of Rancher

Hello everyone,

We need to migrate an imported kubernetes cluster from a Rancher v2.8.5 to another Rancher instance v2.9.0.
On this Kubernetes cluster we have installed the Monitoring chart directly from the Rancher v2.8.5 interface; so now we have the namespace “cattle-monitoring-system” in which the PODs are present, we were wondering if this could be a problem in the migration phase, because first we will have to detach the cluster from the first Rancher (v2.8.5) and in this phase we would not want Rancher to uninstall anything that is bound to itself.

Thanks in advance.
Ezra Di Biase