This is a screenshot on my situtation. I cannot click to open my replays (as you can see they are greyed out like other files would be), they were made very recently and no updates were made to the client since. I used to be able to view the replays about a week ago but now the same replay is unviewable. Can someone please explain why?

It looks like your replays lack the proper extension. You're probably deleting it by accident when you're naming them. Just make sure your files are have ".ssfrec" as the extension and you should be good to go.

Ah, thanks. Pity those replays will have to go, there's some good comedy footage in there

What do you mean? Just rename the file.

'Deleting' seemed to imply they were gone forever. Tested, seems fine.

Maybe you're trying to open a replay from a previous version?

Void was saying you probably removed the ".ssfrec" at the end of the file when you were saving it. The replays are still fine, you just need to rename them and restore ".ssfrec" to the end of the name.