3. Conflict with Other Plugins
- There might be a conflict with another plugin.
- Temporarily deactivate other plugins to check if the issue persists.
- If it works after deactivating other plugins, re-enable them one by one to identify the conflicting plugin.
4. Theme-Specific Issues
- Some themes might not fully support the functionality provided by the “Multiple Themes” plugin.
- Ensure the secondary theme is compatible with the plugin and works independently when set as the main theme.
5. Caching Issues
- Caching plugins or browser cache might be causing the issue.
- Clear your WordPress site cache (if you have a caching plugin) and browser cache.
- If you’re using a server-side cache (e.g., Cloudflare or hosting provider cache), clear that as well.
6. Incorrect Page URL
- Verify that the URL you’re trying to target in the “Multiple Themes” plugin settings matches the new page’s actual URL.
- Ensure the full URL structure (with or without
/
) matches.