I'm not much of a Developer, but I use my developer account as a Mac Admin to sign packages and mobileconfig profiles for distribution via JAMF. I've had no problems until recently.I went to sign a mobileconfig like I always do I can get an error saying: errSecInternalComponentor I get this if I try to sign from the command line using the product sign command: productsign: error: Can't read input product archive "/Users/myuser/Desktop/TEST.mobileconfig"When I run this: security find-identity -vp macappstoreThis is the what is returned 1) 111111111111111111abcdefghijklmnop "Developer ID Installer: My Name (blah0011112)" (Missing required extension)In fact all of my developer ID certs return that (Missing required extension) message nowI assume this has something to do with my inability to sign mobileconfigs, but i'm totally stuck.I've created a whole new keychain, issued a new certificate, nothing works. Any ideas?