I am receiving the following error when trying to create an index pattern in Kibana. Kibana itself just sits at "creating index pattern..." forever, but this error comes up in the elasticsearch logs.
[org.elasticsearch.deprecation.action.admin.indices.template.put.PutIndexTemplateRequest] Deprecated field [template] used, replaced by [index_patterns]
Is this possibly a problem with the data in the index? I used the "Elasticsearch" python client (version 6.3.1) to add in the data, but I wouldn't expect Kibana to hang because of a problem with the data.