Team R2R creates their own self-signed root certificate. By installing their root certificate into your system’s "Trusted Root Certification Authorities" store, you are manually telling your computer: “I trust Team R2R’s signature as if it were VeriSign or DigiCert.”
Trusted Root Certification Authorities Certificate Store - Microsoft Learn install team r2r root certificate new
To bypass this, you need to install the (the new 2024/2025 version). This article provides a step-by-step, safe guide to doing exactly that. Team R2R creates their own self-signed root certificate