This is frustrating. I have a 800x450 image and when I try to validate my JSON feed, I get the error 1 item has an error: Thumbnail must be 16x9 aspect ratio, at least 800w x 450h, and either in JPG or PNG format.
It is the only thing stopping me from being able to publish my channel.
I do not understand why the image is constantly rejected if I have the correct dimensions. Does anyone know why this is happening and how to solve it?
WordPress Interface to Manage Roku Direct Publisher