In case you missed the announcement: The Alteryx One Fall Release is here! Learn more about the new features and capabilities
here
ACT NOW: The Alteryx team will be retiring support for Community account recovery and Community email-change requests Early 2026. Make sure to check your account preferences in my.alteryx.com to make sure you have filled out your security questions.
Learn more here
@Hailey22 I've found that validating workflows with the Sharepoint tools in the past have provided me a similar error message. For those workflows, I skipped validation and uploaded it and it still worked fine! (given that your Server has Sharepoint tools installed)