MIDI overdub not working in clips

[redeyerec]

I'm just trying to overdub MIDI into a clip on the Session screen. I've got the track armed to record. I can record a new MIDI clip and the controller works just fine.

If I hit the play button on a MIDI clip, and the track is armed to record, in AUTO monitoring mode, that's all it should take, right?

[thefunsurgeon]

You have got to activate the small circle, Session Record button at the top of the screen. It will turn red.