SQLClientSchemaRegistryITCase fails with " Subject ... not found"

Jul 28 23:37:48 [ERROR] Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 209.44 s <<< FAILURE! - in org.apache.flink.tests.util.kafka.SQLClientSchemaRegistryITCase
Jul 28 23:37:48 [ERROR] testWriting(org.apache.flink.tests.util.kafka.SQLClientSchemaRegistryITCase)  Time elapsed: 81.146 s  <<< ERROR!
Jul 28 23:37:48 io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Subject 'test-user-behavior-d18d4af2-3830-4620-9993-340c13f50cc2-value' not found.; error code: 40401
Jul 28 23:37:48 	at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:292)
Jul 28 23:37:48 	at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:352)
Jul 28 23:37:48 	at io.confluent.kafka.schemaregistry.client.rest.RestService.getAllVersions(RestService.java:769)
Jul 28 23:37:48 	at io.confluent.kafka.schemaregistry.client.rest.RestService.getAllVersions(RestService.java:760)
Jul 28 23:37:48 	at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.getAllVersions(CachedSchemaRegistryClient.java:364)
Jul 28 23:37:48 	at org.apache.flink.tests.util.kafka.SQLClientSchemaRegistryITCase.getAllVersions(SQLClientSchemaRegistryITCase.java:230)
Jul 28 23:37:48 	at org.apache.flink.tests.util.kafka.SQLClientSchemaRegistryITCase.testWriting(SQLClientSchemaRegistryITCase.java:195)
Jul 28 23:37:48 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Jul 28 23:37:48 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
Jul 28 23:37:48 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Jul 28 23:37:48 	at java.lang.reflect.Method.invoke(Method.java:498)
Jul 28 23:37:48 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
Jul 28 23:37:48 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
Jul 28 23:37:48 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
Jul 28 23:37:48 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
Jul 28 23:37:48 	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:299)
Jul 28 23:37:48 	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:293)
Jul 28 23:37:48 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
Jul 28 23:37:48 	at java.lang.Thread.run(Thread.java:748)
Jul 28 23:37:48