timK-2

Problem:

Sticky Links - When Sticky Links is enabled, the link is shown in its raw state after processing the links.

Solution:

This is expected. When the WPML Sticky Links addon is installed and you have enabled it to make your links sticky, then it is expected to see such a URL pattern. WPML makes it to avoid broken links in your content, although internally you will see these links in this format (?post_type=ID) when clicked they are automatically converted into a permalink structure set up in your WordPress Dashboard > Settings > Permalinks settings.

Relevant Documentation:

https://wpml.org/documentation/getting-started-guide/sticky-links/