I find Mark does say at Mark 16:6 that Jesus is risen.Not according to Mark...
Mark does Not say Jesus resurrected himself.
So, Mark is Not out of harmony with the rest of Scripture which teaches the God of Jesus resurrected Jesus.
- Acts of the Apostles 2:24; Acts of the Apostles 3:15; Acts of the Apostles 5:30; Colossians 2:12; Ephesians 1:20