Failed to Generate Critical CSS

Hi @chatwithdan –

Thank you so much for patiently waiting for a response! We have a backlog of support requests and work through them on a first-come, first-served basis.

To test this, the next step is to look for a plugin conflict. The Health Check plugin’s “Troubleshooting Mode” is an excellent way to do this. It allows you to make changes to your site without them reflecting on the front end. You can download that plugin here:

https://www.ads-software.com/plugins/health-check/

Once you’ve installed and activated the plugin, you can go to Tools → Site Health:

• Select the Troubleshooting tab and then click Enable Troubleshooting to automatically disable all plugins and add a new Troubleshooting Menu item in the toolbar at the top of the wp-admin dashboard.
• From here, you can enable and disable plugins and change the theme for your site, but without affecting normal visitors to your site.

I recommend starting by testing with a different theme. Please try with a default theme such as “Twenty Twenty” and see if you experience the same issue. If you do not, the issue is with your theme. You will need to reach out to your theme developers for a fix.

If it isn’t a theme issue, you will need to test for a plugin conflict. Within Health Check, please disable all plugins other than Jetpack and test again. If it works as expected, you know that the issue is with one of your plugins. Please enable your plugins one at a time, testing after each one, until you encounter the issue again. Once you do, you will know which plugin is causing the issue. At that point, you can either leave it disabled or reach out to the developers for a fix.

Let us know how it goes.

Using the plugin the critical css generates, but the troubleshooting plugin doesn’t allow me to re-enable plugins during troubleshooting, so I can’t figure out what plugin is causing the issue. Is this an issue with the troubleshooting plugin?

Hi @chatwithdan,

Typically, with the Health Check & Troubleshooting plugin, you should be able to selectively enable and disable plugins individually for debugging purposes. Here’s a reference screenshot: https://d.pr/i/Y9fkEQ

If you’re having trouble doing this, it might be an issue with the troubleshooting plugin itself or a conflict with another plugin. You could consider reaching out to the plugin’s support team for guidance. Alternatively, you can manually deactivate and reactivate plugins via your WordPress dashboard to isolate the issue. Remember to take a backup before making any changes.

Let us know if this helps.

Hello @chatwithdan.

Do you have updates about that? We usually close inactive threads after one week of no activity, but we want to make sure we’re all set before marking it as solved. Thanks!