Problem: You are encountering an issue where sidebar widgets disappear on .xml 404 pages within a language directory, while they appear as expected on regular 404 pages. This problem is observed in a setup using WPML with the WPML SEO plugin and a Genesis child theme. Solution: We have investigated and determined that this issue is likely not related to WPML directly. It appears to be associated with how templates are loaded for non-PHP files, such as XML. If you're experiencing this issue, we recommend checking your theme or server configuration to ensure that XML pages are handled correctly. Additionally, verify that your theme supports widget display on XML-generated 404 pages.
If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If problems persist, please open a new support ticket.
