Is your data "time based"? If not, and you don't have a time filter on the top right corner of the top of the page, then your documents should be showing up in Kibana. Have you tried searching for the new documents?
If you still can't find the documents in Kibana then it's likely that your updated documents are not getting into Elasticsearch. Can you try using the "Console" in "Dev Tools" in Kibana to search for the document? You can use a simple request like:
GET /_search?q={something unique to the new documents}
If you still can't find the document then I suggest triple-checking the documentation for the input-jdbc input for logstash and asking in the #logstash group for help because I don't think Kibana is the issue.