I have a wordpress multilingual site, and for that I used wpml for translations. Also have 2 custom post types + products which were created by woocommerce. Now one of the custom post types works only for one language which isn't default language and in other languages page is redirected to 404 page. I've tried to save Settings->Permalinks page but no success.
I found s aolution for my problem. In WPML->Translation Management this "Translate custom posts slugs (via WPML String Translation)" option was checked and that caused my problem, I unchecked that and my problem solved.