Changing global setting "Autocomplete value suggestion method" not working

Elastic Stack Kibana
1

Hello,

There is a global Kibana setting called "Autocomplete value suggestion method" (autocomplete:valueSuggestionMethod) which defaults to "terms_enum and with the following remark:

The method used for querying suggestions for values in KQL autocomplete. Select terms_enum to use the Elasticsearch terms enum API for improved autocomplete suggestion performance. (Note that terms_enum is incompatible with Document Level Security.) Select terms_agg to use an Elasticsearch terms aggregation. (Note that terms_agg is incompatible with IP-type fields.)

So, I know this is incompatible with DLS, but when I change this to "terms_agg" still terms_enum is used in the payload of the request. Even after reloading/hard refreshing and logout/login again.

For example (see method):

/internal/kibana/suggestions/values/logs-*

{
	"query": "",
	"field": "event.code",
	"fieldMeta": {
		"count": 0,
		"name": "event.code",
		"type": "string",
		"esTypes": [
			"keyword",
			"text"
		],
		"scripted": false,
		"searchable": true,
		"aggregatable": true,
		"readFromDocValues": true,
		"shortDotsEnable": false,
		"isMapped": true
	},
	"filters": [
		{
			"range": {
				"@timestamp": {
					"format": "strict_date_optional_time",
					"gte": "2026-07-17T11:35:00.000Z",
					"lte": "2026-07-17T11:50:59.999Z"
				}
			}
		}
	],
	"method": "terms_enum"
}

So, at the moment I can't find a way for filters to work with autocomplete in a discover session when DLS is active on the index privileges.

Current version: 9.3.3

Kind regards,

Peter