I am baffled by this one. I went into a live site that I have been working on.
I went to grab an image from the media library via 'normal process' of Add Media and I see all the thumbnail images are blank - just white boxes. I do a little more looking and I see that all the URLs for the images are:
http://media2.mydomain.com/xxxxxxxxx (where xxxxxxxxx is the rest of the address - the domain is shown exactly as it appears 'mydomain' is EXACTLY what comes up)
It should be:
http://ClientURL.com/xxxxxxxxx (where ClientURL would be the real domain name and xxxxxxxxx is the rest of the address)
I have never seen this. The site comes up properly, and images are shown correctly. However, I cannot do any dev work with the images.
No idea what would have caused this and I cannot seem to find where I might be able to change the path in the database.