This thread is resolved. Here is a description of the problem and solution.
Problem:
The client was concerned about the unprofessional and system-generated appearance of the URL slug 'wp-global-styles-unisved-12' for a page, which did not match the expected descriptive and cleaner 'om-oss' similar to its Polish counterpart.
Solution:
We reviewed the WPML settings and confirmed that the 'Auto-generate from title (default)' option was selected, which should automatically generate the slug based on the page title. It appeared that the slug might have been manually altered on the Swedish page's editing screen. We corrected the slug to 'om-oss' to match the expected format. We asked the client to confirm if the issue was resolved.
If this solution does not apply to your case, or if it seems outdated, we recommend checking the related known issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should the problem persist, please open a new support ticket.
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This topic is split from https://wpml.org/forums/topic/substie-is-not-visible/
