Sean

Problem:
The Yoast Breadcrumb is not showing the translation on the frontend, for CPT post.

Solution:
1) Install Yoast ML addon plugin

2) Go to Seo > Search Appearance > Content type and set correct settings for "Breadcrumb settings for your CPT archive"

3) Make sure this string is then translated via WPML String translation.

Relevant Documentation:
- https://wpml.org/documentation/related-projects/using-wordpress-seo-with-wpml/