You can follow this guide if you encounter this error message when logging in:
“Something went wrong authorizing your account with XSplit. Please try again.”
This error message is usually caused by certain browsers and/or browser extensions blocking XSplit from authorizing the login, such as ad blockers, proxies, or VPN services. You can fix this by disabling these services temporarily and then try logging in again.
If Brave is set as your computer’s default browser, we suggest turning Brave's Shields DOWN on the XSplit website. Then login on the XSplit program again to complete the authorization. You can turn the Brave Shields UP again after successfully logging in.