[CI] XPackRestIT test {p0=esql/60_usage/Basic ESQL usage output (telemetry) non-snapshot version} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #8937 / release-tests
• elasticsearch-periodic #8919 / release-tests
• elasticsearch-pull-request #76356 / part-3

Reproduction Line:

./gradlew ":x-pack:plugin:yamlRestTest" --tests "org.elasticsearch.xpack.test.rest.XPackRestIT.test {p0=esql/60_usage/Basic ESQL usage output (telemetry) non-snapshot version}" -Dtests.seed=9CCC1B48293E2B32 -Dbuild.snapshot=false -Dtests.jvm.argline="-Dbuild.snapshot=false" -Dlicense.key=x-pack/license-tools/src/test/resources/public.key -Dtests.locale=en-DE -Dtests.timezone=Europe/Isle_of_Man -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Failure at [esql/60_usage:149]: field [esql.features] doesn't have length [26]
Expected: <26>
     but: was <27>

Issue Reasons:

• [main] 2 consecutive failures in test test {p0=esql/60_usage/Basic ESQL usage output (telemetry) non-snapshot version}
• [main] 2 consecutive failures in step release-tests
• [main] 2 consecutive failures in pipeline elasticsearch-periodic
• [main] 3 failures in test test {p0=esql/60_usage/Basic ESQL usage output (telemetry) non-snapshot version} (18.8% fail rate in 16 executions)
• [main] 2 failures in step release-tests (18.2% fail rate in 11 executions)
• [main] 2 failures in pipeline elasticsearch-periodic (18.2% fail rate in 11 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

This has been muted on branch main

Mute Reasons:

• [main] 2 failures in test test {p0=esql/60_usage/Basic ESQL usage output (telemetry) non-snapshot version} (13.3% fail rate in 15 executions)

Build Scans:

• elasticsearch-periodic #8919 / release-tests
• elasticsearch-pull-request #76356 / part-3

[elasticsearchmachine]

Pinging @elastic/es-search-relevance (Team:Search Relevance)

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[elasticsearchmachine]

Pinging @elastic/search-eng (Team:SearchOrg)

[elasticsearchmachine]

Pinging @elastic/search-relevance (Team:Search - Relevance)