[CI] SmokeTestMultiNodeClientYamlTestSuiteIT test {yaml=index/100_field_name_length_limit/Test field name length limit synthetic source} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #31529 / part6
• elasticsearch-pull-request #105439 / part-6
• elasticsearch-pull-request #104986 / part-6

Reproduction Line:

./gradlew ":qa:smoke-test-multinode:yamlRestTest" --tests "org.elasticsearch.smoketest.SmokeTestMultiNodeClientYamlTestSuiteIT.test {yaml=index/100_field_name_length_limit/Test field name length limit synthetic source}" -Dtests.seed=636B3F3D45D62F82 -Dtests.locale=xog-Latn-UG -Dtests.timezone=Asia/Kuwait -Druntime.java=25

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Failure at [index/100_field_name_length_limit:131]: field [test_index.mappings.properties.foo.properties.field_name_not_ignored.type] is null

Issue Reasons:

• [main] 3 failures in test test {yaml=index/100_field_name_length_limit/Test field name length limit synthetic source} (0.7% fail rate in 445 executions)
• [main] 2 failures in step part-6 (0.9% fail rate in 223 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (0.9% fail rate in 229 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] 3 failures in test test {yaml=index/100_field_name_length_limit/Test field name length limit synthetic source} (0.7% fail rate in 445 executions)
• [main] 2 failures in step part-6 (0.9% fail rate in 223 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (0.9% fail rate in 229 executions)

Build Scans:

• elasticsearch-intake #31529 / part6
• elasticsearch-pull-request #105439 / part-6
• elasticsearch-pull-request #104986 / part-6

[elasticsearchmachine]

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