Problem:
When the translation is in the progress (in progress that won't work) I can't edit the page to translate it manually, and I can't delete page in progress in another language.
Solution:
You can cancel the translations in progress and then start again the translation
In order to do that :
- Go to WPML -> Translation Management -> Translation Jobs
- In this screen, search for one of the problematic pages and cancel it
- Then you can start the translation from scratch, your way.
