Problem: The client reported that after a WPML update, the original language categories on their website disappeared, leaving only the categories in the translated language (Spanish). Attempting to recreate the categories in the original language resulted in duplicate category slugs (e.g., 'news-2'). Solution: We suggested that the disappearance of the categories might be due to changes in the database after uninstalling WPML, rather than a direct issue caused by WPML itself. To address this, we recommended the following steps: 1. Navigate to WPML -> Support -> Troubleshooting. 2. Click on 'Set language information'. For more details, visit WPML Troubleshooting Options. 3. Check if the original language categories reappear after these steps. If the issue persists, it might be unrelated to WPML or due to other configuration issues. In such cases, we highly recommend checking related known issues at WPML Known Issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If this solution does not resolve the issue or seems irrelevant, please open a new support ticket at WPML Support Forum for further assistance.