Midi timing In Cubase doesn’t seem to be accurate.
1-Open a new project
2-Create 2 midi track
3-(Mac) route the output of midi 1 trough IAC bus 1
4-(Mac) route the input of midi 2 from IAC bus 1
5-Write a couple of midi note on midi 1 (on each bar for 1 or 2 mesures)
6-Record enable Midi 2 and press record to record the midi notes from midi 1 to midi 2
7-Zoom in and check the result
Some notes are early, some are late.