WPML: Translated job posts sometimes give 404's

**Describe the bug**
Hi,

I've sent 3 emails (third one this morning) to the support and still no answers (first email was sent about a month ago...). I don't know what to do to just get a single reply so I'll write here as well.

We have 2 sites using wp job manager and both of them have the exact same problem.

We use WPML to translate job entries. The default language (english) works fine. The french translation sometimes gives 404's. To fix it, I have to edit the job post in the administration. I don't need to modify anything or save, just opening the job post fixes the 404.

**To Reproduce**
I have no idea, the entry works, and out of nowhere, it gives a 404.

**Expected behavior**
Not give a 404 and work like it should.

**WordPress Environment**
- WordPress Version: 5.2.3
- WP Job Manager Version: 1.33.5
- PHP Version: 7.2.6
- Other important details:

There are no files or tests named in the report, and the failure has no reproducible steps. Start by testing translated French job entries with WPML against the English entries, then compare behavior before and after opening the post in the administration; done means translated job posts no longer return 404s.

Written by the indexing model from the issue text.