Do you see any event in monitoring the 2nd, 3rd, 4th recording tracks?
Take a note that, unless you tell each track is listening in Omni or is in (auto-)monitor mode, that track will only capture/record those events in the track's assigned MIDI channel. All events of any other channel will get lost, that is, won't get recorded at all.
You should always check the track monitor meters for actual events being detected and routed and that those events get actually pictured on-the-fly while recording is rolling.
When record stops, any empty take resulting from no event being recorded is discarded automatically, thus the result being blank. Perhaps that's the case you're reporting.
If you created the MIDI tracks in sequence, the first one gets assigned to MIDI channel 1, the second to MIDI channel 2, and so on. To record into those tracks you'll have to either set your master keyboard to send in the correct MIDI channel, make use of the auto-monitor feature and keep the recording track as current selected (see Track/Auto-monitor) or set each track in Omni or/and Monitor mode.
Please check whether this all makes any sense and, most importantly, is the case in question.
HTH
Do you see any event in monitoring the 2nd, 3rd, 4th recording tracks?
Take a note that, unless you tell each track is listening in Omni or is in (auto-)monitor mode, that track will only capture/record those events in the track's assigned MIDI channel. All events of any other channel will get lost, that is, won't get recorded at all.
You should always check the track monitor meters for actual events being detected and routed and that those events get actually pictured on-the-fly while recording is rolling.
When record stops, any empty take resulting from no event being recorded is discarded automatically, thus the result being blank. Perhaps that's the case you're reporting.
If you created the MIDI tracks in sequence, the first one gets assigned to MIDI channel 1, the second to MIDI channel 2, and so on. To record into those tracks you'll have to either set your master keyboard to send in the correct MIDI channel, make use of the auto-monitor feature and keep the recording track as current selected (see Track/Auto-monitor) or set each track in Omni or/and Monitor mode.
Please check whether this all makes any sense and, most importantly, is the case in question.
HTH