Hello @nwoodcontr9d68 ,
I think you should check code in the file path of the endpoint which you disclosed in your comment.
There should be a hard code or admin configuration.
If there is no configuration and hard code in that file then there should be an observer file ( event ) or any plugin from where order status changing.
If this answer helps you then click on Kudos.
and click on Accept as Solution
Thank you
Hiren Patel