[Resolved] Post edit forms relationship selector stopped working
This thread is resolved. Here is a description of the problem and solution.
Problem:
An older site uses the cred_link_form shortcode to link to an edit form, and after an update the related post selector on the form stopped working.
Solution:
This was unintended and we will look at updating this to maintain backwards compatibility, but in the meantime you can update how the Edit Forms are linked to to match current usage, as described in the linked documentation.
Is this an older site where the relationships were created in Types 2?
Have you run the migration to convert the relationships to the new Types 3 relationships?
field='_wpcf_belongs_show_id' is the older format.
field='@show_podcast.parent' is the new format, except(!) the attribute would be item and not field.
In such a situation I would auto-generate the form markup and it should create the correct field in the correct format. (If you don't want to lose your current form markup, create a new one that you can copy markup from and then discard.)