**Found in version**
- Observed in 8.2.3, but might exist longer

**Steps to reproduce**
On a multi node cloud cluster (might also work on a local multi node cluster):
- Create a transform with a retention policy
- Update the transform and remove the retention policy

**Expected result**
- The retention policy is removed

**Actual result**
- This sometimes results in an error:
```
An error occurred calling the API endpoint to update transforms.
Bad Request: [illegal_argument_exception: [illegal_argument_exception] Reason: 
Unknown NamedWriteable [org.elasticsearch.xpack.core.transform.transforms.RetentionPolicyConfig][null_retention_policy]]:
Unknown NamedWriteable [org.elasticsearch.xpack.core.transform.transforms.RetentionPolicyConfig][null_retention_policy]
```

**Additional information**
- Quote from slack discussion with @benwtrent:
  > It wouldn’t happen if you hit a node that can execute the update immediately without serializing to a different node
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/XPackClientPlugin.java
MachineLearningFeatureSetUsage::new
                ),
                
                new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.MONITORING, MonitoringFeatureSetUsage::new),
                
                new NamedWriteableRegistry.Entry(ClusterState.Custom.class, TokenMetadata.TYPE, TokenMetadata::new),
                new NamedWriteableRegistry.Entry(NamedDiff.class, TokenMetadata.TYPE, TokenMetadata::readDiffFrom),
                new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.SECURITY, SecurityFeatureSetUsage::new),
                
                new NamedWriteableRegistry.Entry(
                    ConfigurableClusterPrivilege.class,
                    ConfigurableClusterPrivileges.ManageApplicationPrivileges.WRITEABLE_NAME,
                    ConfigurableClusterPrivileges.ManageApplicationPrivileges::createFrom
                ),
                new NamedWriteableRegistry.Entry(
                    ConfigurableClusterPrivilege.class,
                    ConfigurableClusterPrivileges.WriteProfileDataPrivileges.WRITEABLE_NAME,
                    ConfigurableClusterPrivileges.WriteProfileDataPrivileges::createFrom
                ),
                
                new NamedWriteableRegistry.Entry(RoleMapperExpression.class, AllExpression.NAME, AllExpression::new),
                new NamedWriteableRegistry.Entry(RoleMapperExpression.class, AnyExpression.NAME, AnyExpression::new),
                new NamedWriteableRegistry.Entry(RoleMapperExpression.class, FieldExpression.NAME, FieldExpression::new),
                new NamedWriteableRegistry.Entry(RoleMapperExpression.class, ExceptExpression.NAME, ExceptExpression::new),
                
                new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.EQL, EqlFeatureSetUsage::new),
                
                new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.SQL, SqlFeatureSetUsage::new),
                
                new NamedWriteableRegistry.Entry(Metadata.Custom.class, WatcherMetadata.TYPE, WatcherMetadata::new),