Letsencrypt certificate renewal privileges bug OSX Server

Today i've renewed the SSL certificates for my website using letsencrypt. The generated keys in the /etc/letsencrypt/archive/yourdomainname were successfully generated. So i got cert.pem, chain.pem, fullchain.pem and privkey.pem The privileges on privkey.pem were different from usual, so when i tried to import then into the certificates section in OSX Server by Certificates> + sign > import a certificateidentity i got an error that the privkey.pem was empty. I opened that file with pico and that thew up the error cant read. So adjusted the privileges on privkey.pem and added administrator with read enabled to it. Now the files could be imported and het SSL renewed in OSX Server. Posting just to safe someone some time. Thx.