[CI] CrossClusterQueryWithPartialResultsIT testOneRemoteClusterPartial failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #6632 / ubuntu-2004-aarch64_checkpart3_platform-support-arm
• elasticsearch-periodic-platform-support #6569 / almalinux-8-aarch64_checkpart3_platform-support-arm
• elasticsearch-intake #18541 / part3

Reproduction Line:

./gradlew ":x-pack:plugin:esql:internalClusterTest" --tests "org.elasticsearch.xpack.esql.action.CrossClusterQueryWithPartialResultsIT.testOneRemoteClusterPartial" -Dtests.seed=9379329E74F537E7 -Dtests.locale=en-VI -Dtests.timezone=Etc/GMT-4 -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: null

Issue Reasons:

• [main] 3 failures in test testOneRemoteClusterPartial (0.3% fail rate in 918 executions)
• [main] 2 failures in pipeline elasticsearch-periodic-platform-support (11.8% fail rate in 17 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 testOneRemoteClusterPartial (0.3% fail rate in 918 executions)
• [main] 2 failures in pipeline elasticsearch-periodic-platform-support (11.8% fail rate in 17 executions)

Build Scans:

• elasticsearch-periodic-platform-support #6632 / ubuntu-2004-aarch64_checkpart3_platform-support-arm
• elasticsearch-periodic-platform-support #6569 / almalinux-8-aarch64_checkpart3_platform-support-arm
• elasticsearch-intake #18541 / part3

[elasticsearchmachine]

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