"Whoops there was an error." when trying to delete attachments.
Running 2.1.3 stable, version Version 22.214.171.124 of FileUpload (the one with Peregrine fixes), I'm getting the above error message when trying to delete files. I can open and/or download the attachments just fine.
I've gone digging through the forums for similar problems from other users, but haven't found anything yet.