Is Fusion bad at handling special characters outside the standard english lexicon?

[OmahaOmaha]

Running into issues with Fusion processing email addresses with special characters. We continue to get [422] invalid parameter: invalid email value errors with email addresses with special characters "é", "ç", "�", "ñ". Is this a known issue with Fusion?

[Sven-iX]

Works just fine using MS 365 module