I read it was more secure to use something else besides wp_ as the database prefix, so I downloaded my .sql file replaced all instances of wp_ with tsi_ and then dropped the wp_ tables and imported my .sql file.
The prefix is now correct, so then I went to my wp_config file and changed the prefix table from wp_ to tsi_ and I thought everything was good.
Well, all my posts were still there, but the images are missing. I say missing because when you look in the uploads folder they are there, correctly sorted and everything, but in the media library, they appear as grey icons instead of the previews and they are missing from all my posts. Is there any way to get the images to display correctly?
*The domain name did not change or any of my settings, I just changed the database prefix and that's it.
The grey icons in the media library:
The posts without images: