Hi everyone,
We apologize for the inconvenience and appreciate your patience. It seems there’s a common challenge with generating Critical CSS, but keep in mind that the underlying reasons can vary for each website. To provide you with the most effective support, we kindly ask each of you to open a new support thread using this link. When you do, please include the exact error message you’re encountering and your site’s URL, which will greatly assist in troubleshooting the issue.
@rebellionrugby, let’s continue to focus on your site in this thread. I’ve taken a look at your site and noticed it’s using both internal and external CSS, which might be tricky for Jetpack Boost when it tries to regenerate Critical CSS. However, to investigate further, can you please tell us if you see any specific error when Boos fails to regenerate Critical CSS for your site?