Index pattern failure with index having large field amount

ES Version: 6.6.0
Kibana Version: 6.6.0

I have several indexes running without issues but when i try to create an index pattern in Kibana for an index that has a large(over 1000) field count, it fails. I have put kibana and ES in debug for logging but i they haven't produced any errors.

vsphere-clusters-index | 24 fields | Index pattern creation success
vsphere-hosts-index | 1823 fields | Index pattern creation fails
vsphere-vcenters-index | 1404 fields | Index pattern creation fails

vsphere-hosts-index settings

"vsphere-hosts-index": {
"settings": {
"index": {
"mapping": {
"total_fields": {
"limit": "10000"
"number_of_shards": "5",
"provided_name": "vsphere-hosts-index",
"creation_date": "1549981616590",
"number_of_replicas": "1",
"uuid": "FsD53k3vRFeWh_-iNL-pzw",
"version": {
"created": "6060099"

Some things i have tried:
Changed the server.maxPayloadBytes in kibana.yml to 10MB
Changed the elasticsearch.requestTimeout to 10 minutes
Deleted and recreated the indexes
Deleted and recreated/restart kibana index

Anyone run into this issue before?

Hi, could you capture the response of the failed request via the Network tab in Chrome dev tools?

I think this may warrant opening a Github issue:

Attached is a screenshot from the network tab. I have created issue

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