Here's where I'm at:
I've imported posts from Blogger -> WordPress.
The inline images were all too small. So I used Regenerate Thumbnails to resize all images because Blogger was using the Medium Size dimensions for inline images in post content. So I changed the medium size dimensions to what I wanted. Ran Regenerate Thumbnails, everything went through successfully.
But the inline images in the post never changed to the new size. Isn't this supposed to happen?
How can I get this to happen?
That inline image is still using the too small version, as you can see, it's blurry.
How can I automatically update all of these posts that use the older small size?