[تم الحل] Can't finalize translation despite translating everything

Background of the issue:
I am trying to translate a page using the Advanced translation editor after the latest updates of the WPML plugin. The issue can be seen on this page: الرابط المخفي. I want to be able to translate and publish the translated page in English.

Symptoms:
Despite translating all content fields, the translation remains at 97% completed. Clicking 'Complete Translation' scrolls to a specific field, but clicking 'Save' does not change the percentage. Sometimes, clicking 'Complete Translation' causes two fields to flicker between active states. The English version of the page does not exist in the WP panel.

Questions:
Why does the translation remain at 97% despite translating all fields?
What causes the flickering between two fields when clicking 'Complete Translation'?