I've tried this on ES/Kibana 5.1.2 and 5.2.1 and have had the same problem.
Using a fresh install, I go to Kibana's Dev Tools
tab and enter:
PUT test
{
"mappings": {
"test": {
"properties": {
"field1": {
"type": "text"
},
"created_at": {
"type": "date"
}
}
}
}
}
I get the result:
{
"acknowledged": true,
"shards_acknowledged": true
}
I then add the new index to my Kibana indices:
Then I go to Kibana's Discover
tab and see:
I've tried different mappings and different ES/Kibana version combinations. I'm at a loss of what could be wrong!
Please let me know if you need any additional information.