Some more earlier failures with the same issue (all in Windows builds):
https://gradle-enterprise.elastic.co/s/ic3vf76vlpiho
https://gradle-enterprise.elastic.co/s/7nsuvadgg5bbm
https://gradle-enterprise.elastic.co/s/7kcrezoswrgdg

**Build scan:**
https://gradle-enterprise.elastic.co/s/whgmtqrtovpgu/tests/:server:internalClusterTest/org.elasticsearch.reservedstate.service.FileSettingsServiceIT/testErrorSaved

**Reproduction line:**
`gradlew ':server:internalClusterTest' --tests "org.elasticsearch.reservedstate.service.FileSettingsServiceIT.testErrorSaved" -Dtests.seed=762F971779043BEB -Dtests.locale=es-BO -Dtests.timezone=Africa/Luanda -Druntime.java=18`

**Applicable branches:**
main

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.reservedstate.service.FileSettingsServiceIT&tests.test=testErrorSaved

**Failure excerpt:**
```
org.elasticsearch.cluster.metadata.ProcessClusterEventTimeoutException: failed to process cluster event (delete_repository [*]) within 30s

  at __randomizedtesting.SeedInfo.seed([762F971779043BEB:C5DE1806AEE40E21]:0)
  at org.elasticsearch.cluster.service.MasterService$Batcher.lambda$onTimeout$1(MasterService.java:165)
  at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:825)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
  at java.lang.Thread.run(Thread.java:833)

```
server/src/test/java/org/elasticsearch/cluster/metadata/ToAndFromJsonMetadataTests.java
import org.elasticsearch.Version;
import org.elasticsearch.action.admin.indices.rollover.RolloverInfo;
import org.elasticsearch.cluster.coordination.CoordinationMetadata;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.TestCustomMetadata;
import org.elasticsearch.xcontent.ToXContent;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.json.JsonXContent;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.elasticsearch.cluster.metadata.AliasMetadata.newAliasMetadataBuilder;
import static org.elasticsearch.cluster.metadata.DataStreamTestHelper.createFirstBackingIndex;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_VERSION_CREATED;
import static org.elasticsearch.cluster.metadata.Metadata.CONTEXT_MODE_API;
import static org.elasticsearch.cluster.metadata.Metadata.CONTEXT_MODE_GATEWAY;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
public class ToAndFromJsonMetadataTests extends ESTestCase {