This thread is resolved. Here is a description of the problem and solution.
Problem:
The client reported issues with internal links on their multilingual website. Some links on the German version of the site were incorrectly redirecting to either the wrong domain or to English pages despite having German translations available.
Solution:
We reviewed the reported links and found that they were functioning correctly, leading to the appropriate pages as intended. It is possible that the issue was related to caching. We advised the client to clear their cache and check again. If the problem persists, we recommended providing debug information for further investigation, which can be found here: http://wpml.org/faq/provide-debug-information-faster-support/.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, please do not hesitate to open a new support ticket. We also 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. For further assistance, you can visit our support forum at https://wpml.org/forums/forum/english-support/.
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.
This topic is split from https://wpml.org/forums/topic/delete-former-default-language-from-the-database/