I used a standard blog template to jumpstart a site. But in this particular case, I need Categories to be a multi-reference instead of a standard reference. My intention was to remove the Category field from Blog Posts, and create a new Categories field that was a multi-reference, but I get an error saying that:
This field is currently used by either a Dynamic List on the site or inside a Collection page template. To delete this field, you'll need to remove any references to it first.
Which I fundamentally understand. But I've gone through all the pages and templates, un-linked the connection to Categories (which isn't insignificant, and I believe I did correctly) but still the error persists. Am I missing something or is it impossible to remove a reference that deep?