Hi,
Go to Kibana /Management/Objects/Saved Visualizations, and click on any visualization. You'll see something like this:
{
"index": "elasticsearch-logs*",
"query": {
"match_all": {}
},
"filter": []
}
Here you can change the name of your index pattern in "index" to see if the visualization is still working with the current index pattern. This might be a quick fix just to test or you can do it if you don't have a lot of searches/visualizations/dashboards etc. If it still doesn't work that probably means that your pattern has changed, and that is why it is not working. Also, try to load some data in your pattern. There are some fields which are created later or scripted fields might cause problem if they are included.