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 after December 31, 2025. Set up your security questions now so you can recover your account anytime, just log out and back in to get started.
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)