Hi @graysonendpoint,
Thanks for reaching out!
The tag column expects a single string value for each row (or null):

And then, for editable tag columns, the option list should be a single array of items where the value matches the table values (you can change the label to be anything you want):

Keep in mind the dropdown list will be the same array of items for each row
One helpful test if you're not seeing any data in the editable tag, is to check on "Allow custom values". If the table suddenly populates with data, it's likely that your Option list mapped value's value field doesn't directly match the table data.
It's a little tricky to visualize. Feel free to join office hours if you'd prefer to chat through your use case.