Monkit plugin fails to parse the monkit.xml file - it it is encoded as UTF-8. Must be encoded as ANSI or ANSI as UTF-8.
Else monkit errors like this:

MonKit Plugin version 0.2.6
Found 1 reports
FATAL: Unable to get monkit-acce.xml. Skipping
net.praqma.monkit.MonKitException: Coult not parse the file
at net.praqma.monkit.MonKit.fromString(MonKit.java:150)
at net.praqma.jenkins.plugin.monkit.MonKitPublisher.perform(MonKitPublisher.java:86)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:36)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:802)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:774)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:724)
at hudson.model.Run.execute(Run.java:1600)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:237)
Didn't find any readings across all categories, failing build!