Event log messages are published in the wrong format.

I'm on a Windows 10 VM created with Hyper-V Quick Create (Windows 10 Enterprise Evaluation 1809 17763.134). There are control characters being printed into the system's Event Log. Here's an example of just one message (on the General tab):

Job succeeded                                     [0;m  duration[0;m=12.9337071s job[0;m=198553211 project[0;m=11889673 runner[0;m=dFue64Cz

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When I look at the Details tab, I see another error.

This event is not displayed correctly because the underlying XML is not well formed. Below is the raw text of the event.

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Apparently, the event log wants a specific XML schema to be used when publishing events.

https://docs.microsoft.com/en-us/windows/desktop/WES/eventschema-schema