Simple issue. In /etc/ssh/sshd_config the declaration of sftp service is wrong Is Subsystem sftp /usr/lib/ssh/sftp-server Should be Subsystem sftp /usr/lib64/ssh/sftp-server
Sorry, to fast to post. That was an error in my automatic install script. I checked it too late.
Status: NEW => RESOLVEDResolution: (none) => INVALID