We have a pipeline job in our environment, ever since we updated Jenkins from 2.89,2 to 2.138.2( also updated some Pipeline & Blueocean relating plugins ), something really strange happened. A build that finishes with SUCCESS would later be set to FAILURE, and the icon that shows the status of the build would also be reset to the red failed one. But in the console log, it still shows SUCCESS. Whereas,  a build that finishes with FAILURE would stay failed status.

This also resulted in the chaos of mail notification, we keep receiving "Job is back to normal" notification.

The attachments are the console log of successful builds and theirs build status icons. 

Also get something from Jenkins system log:

Jan 25, 2019 4:50:42 AM hudson.model.Run execute
INFO: **/**#693 main build action completed: SUCCESS
Jan 25, 2019 4:50:51 AM hudson.slaves.RetentionStrategy$Demand check
INFO: Launching computer **** as it has been in demand for 1 min 50 sec
Jan 25, 2019 4:50:51 AM hudson.model.Run execute
SEVERE: Failed to save build record

java.io.IOException: java.lang.RuntimeException: Failed to serialize hudson.model.Actionable#actions for class hudson.model.FreeStyleBuild
at hudson.XmlFile.write(XmlFile.java:200)
at hudson.model.Run.save(Run.java:2015)
at hudson.model.Run.execute(Run.java:1876)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429)
Caused by: java.lang.RuntimeException: Failed to serialize hudson.model.Actionable#actions for class hudson.model.FreeStyleBuild
at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256)
at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:1026)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:1015)
at com.thoughtworks.xstream.XStream.toXML(XStream.java:988)
at hudson.XmlFile.write(XmlFile.java:193)
... 5 more
Caused by: java.lang.RuntimeException: Failed to serialize org.jenkinsci.plugins.EnvironmentVarSetter#log for class org.jenkinsci.plugins.EnvironmentVarSetterat hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256)
at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88)
at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64)
at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
... 18 more
Caused by: java.lang.UnsupportedOperationException: Refusing to marshal java.io.PrintStream for security reasons; see https://jenkins.io/redirect/class-filter/
at hudson.util.XStream2$BlacklistedTypesConverter.marshal(XStream2.java:546)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
... 33 more

Would be very grateful if anyone could figure out why this strange thing happens.