Allure report failing due to invalid XML character

[jtaylordigital]

Hi. I'm trying to implement the Allure reporter into our project, but I'm encountering an issue where the reporter errors out and stops running tests when an assertion in a test fails validation. If the assertions pass, the allure report files are generated as expected.
When an assertion fails validation, the following error is generated and the test run stops:
Error: charData should not contain characters not allowed in XML

We're using jest-matchers as our assertion library, and the assertion that generates this error is in this format:
expect(sometext).toBe(sometext);

If I run the test with just the spec reporter, the assertion returns a validation message that looks like this:

Expected value to be (using ===):
  "sometext"
Received:
  "notsometext"

Is there a way to resolve this error so that Allure will properly generate the report files even when these assertions fail?

We're using:
"wdio-allure-reporter": "0.8.3"
"jest-matchers": "20.0.3"
"webdriverio": "4.12.0"