Problem:
I have a form to create a relationship between a Coach and a Trainee. If the user types into the select2 field(for either parent or child) a name that is already connected, the error message reads "No coach can be associated to [NAME]" or "No trainee can be associated to [NAME]"

This is terrible English and I want to be able to craft a better error message for the user. This message is not available in the Messages pane of the relationship form page. Where can I edit this text?

I also want to edit the placeholder text in the select2 (it current says "Search for a post")
Solution:

Relevant Documentation:
Another option: https://toolset.com/forums/topic/how-do-i-change-the-error-text-associated-with-select2-in-a-relationship-form/#post-2603489

Problem:

Some images do not show in the Elementor Gallery when using Toolset custom fields to retrieve the images.

Solution:

By default, if an image is wider or taller than "2560px", WordPress automatically creates its scaled down and optimized copy and uses that. You'll note that the 3 missing images are indeed wider and taller than that threshold value of "2560px".

Toolset's own blocks are already updated to work with this WordPress feature, but, it turns out that the Elementor's image carousal widget doesn't supports it and as a result, it can not show those big images.

Reduce the image sizes and the issue should be fixed.

Relevant Documentation:

https://toolset.com/forums/topic/image-gallery-not-showing-all-images-in-elementor-pro/#post-1913177