How can I debug the issue of the Mux video player not loading on certain pages generated from a CMS collection in Webflow?

If the Mux video player is not loading on certain pages generated from a CMS collection in Webflow, there could be several possible reasons for this issue. Here are some steps to help you debug and resolve the problem:

1. Check the CMS Collection Item: Start by ensuring that the CMS collection item associated with the problematic pages has the correct video URL or Mux asset ID. Verify that the field in the CMS collection is populated correctly and contains valid data.

2. Inspect the Page Structure: Examine the structure of the problematic pages in the Webflow Designer. Make sure that the Mux video player is present and properly set up within the page elements. Double-check that the embed code or custom code element for the Mux video player is correctly placed on the page.

3. Review the CMS Template: Evaluate the CMS template used for rendering the CMS collection pages. Confirm that the template includes the necessary code or components to display the Mux video player. Verify that the template is correctly associated with the CMS collection and set as the template for those pages.

4. Debug in Preview Mode: Preview the CMS collection pages in the Webflow Designer's Preview mode. Use the browser's inspect tool (usually accessible by right-clicking and selecting "Inspect" or pressing F12) to check for any console errors, warnings, or network issues related to the Mux video player. Look for any JavaScript errors or missing network requests.

5. Test on Published Site: Publish your site and navigate to the problematic pages on the live site. Repeat step 4, inspecting the live site using the browser's developer tools. Compare any console errors or network issues with those found in the preview mode.

6. Check Mux Settings: Ensure that you have configured the Mux video player correctly on the Mux platform. Make sure that the player is set to allow the domain where your Webflow site is hosted. Check the domain settings in your Mux account and whitelist the appropriate domain if necessary.

7. Test in a Different Environment: Create a test page outside of the CMS collection that uses the same Mux video player setup. Verify if the Mux video player loads correctly on this test page. This will help you determine if the issue is specifically related to the CMS collection or if it is a broader problem.

8. Contact Webflow Support: If you have exhausted all the above steps and are still unable to resolve the issue, reach out to Webflow Support. Provide them with detailed information about your setup, including the URL of the problematic page and any relevant error messages from the browser's console. They'll be able to assist you further by investigating any potential platform-specific issues or bugs.

By following these steps, you should be able to identify and address any issues causing the Mux video player not to load on certain pages generated from a CMS collection in Webflow.