When creating new content that is set to unpublished, the content preview does not generate. Also, when changing published content from Published to Unpublished, the preview is deleted. The "Only trigger builds for published content" setting being unchecked is not recognized.
Add a check for the "Only trigger builds for published content" setting when inserting and deleting preview builds.
You have your Gatsby Integration module settings in Drupal configured to display Gatsby previews.
Example Configuration:
Gatsby Server URL=http://localhost:8000/
Preview Webhook URL(s)=http://localhost:8000/__refresh
Build Webhook URL(s)=http://localhost:8000/__refresh
Active
2.0
Code
Created and attaching a patch that can be applied via composer to resolve this issue.