Under Media Settings I edited the Image Sizes to the following:
Thumbnail size: 170x80
Medium size: 550x170
Large size: 550x320
("Crop thumbnails to exact dimensions" is checked)
Maximum embed size: Width 1000, Height 1000
My problem is when I upload an image it ignores these dimensions. For example, when I upload a 550x320 image, and then try to add it to a post, it has been cropped to the following sizes (uploads folder shows the same):
Thumbnail size: 137x80
Medium size: 292x170
Large size: (unavailable)
Original size: 550x320
How can I get these image sizes working correctly?