Hi Wes,
I uploaded the images that would eventually become each page’s featured image both at:
A) “Full Size” aka their original size
B) “Thumbnail” 150×150
This was through the “Add Media” path, then I would hit “Set Featured Image”>”Media Library”> and insert the uploaded photo
I also tried just avoiding the “Add Media” and going straight to “Set Featured Image” then uploading the photo right in.
Nothing worked though.
And yes, I am using Genesis Featured pages widget with the image size set to “thumbnail (150×150).