No Playback of Recorded MIDI

Hi, I'm also having difficulty getting my softsynths to play back (was able to a few days ago, though I'm new to SO3). Tried everything I could figure out, but it is not working for me. I have a Novation Impulse 49 (when will that appear on the list of supported controllers ?), and a M-Audio Fast Track Ultra interface. I am ruing Windows 10 Pro on an AMD FX-9370 build with 16GB of ram. PC crunching power is likely not an issue, as MIDI playback was working fine the other day.

Any enlightenment on the mapping/coections to fix this ? Thanks, Joe