Autoscaling simulation error

[Cao, Li]

Hi!

I am using solr 8.3.0 in cloud mode. I have collection level autoscaling policy 
and the collection name is “entity”. But when I run autoscaling simulation all 
the steps failed with this message:

        "error":{
          "exception":"java.io.IOException: 
java.util.concurrent.ExecutionException: org.apache.solr.common.SolrException: 
org.apache.solr.common.SolrException: Could not find collection : 
entity/shards",
          "suggestion":{
            "type":"repair",
            "operation":{
              "method":"POST",
              "path":"/c/entity/shards",
              "command":{"add-replica":{
                  "shard":"shard2",
                  "node":"my_node:8983_solr",
                  "type":"TLOG"}}}},
          "replicaInfo":null}}},

Does anyone know how to fix this? Is this a bug?

Thanks!

Li