MIDI Settings in disarray after Windows 10 update...

I have been having problems with Sonar talking consistently to my AKAI MPK261, so I don't know if it's related, but I updated to the Windows 10 Creator's Update and afterward could not get them to talk at all. I tried going over all the midi and device settings, and as far as I can tell they look right, or least the same as before, but now I have recorded midi tracks playing the wrong instrument, and still cannot get a conversation going between Sonar and the AKAI... any help would be greatly appreciated.

Nobody? Nothing?

Hmmm, okay, well, I am generally pretty up to date, there's nothing available in the Command Center, I've updated the Presonus, the midi controller website doesn't offer anything... that being said, I can see that as a reason I'm having trouble getting the controller to talk to Sonar, and I'll keep exploring that, but I'm not sure how that would affect the main issue... I'll try to be more concise, I have two bass parts and two string parts, if I solo the first bass part (track 3), I can see the midi info in the track, but it doesn't play back and the meter isn't reacting. If I solo the second bass part (track 4) I hear the first bass part played back. If I then unsolo the second bass track, and solo the first string track (track 5), I hear the second bass part, even though I'm not soloing that track, and the part is being affected by the reverb on the string track (the bass parts are dry). Each track seems to be shifted down.

I'm not knowingly using drum maps, the percussion parts I have on this particular piece, I built manually in the Piano view, if that's tantamount to using drum maps, then yes. However, my issue is with bass and string tracks, which I initially played in from the midi controller as soft synth TTS tracks. I was able to recreate the song in a different file and everything is correct, except I can't seem to punch into the prerecorded midi tracks, I have the correct sounds assigned to them, but my controller still isn't talking to Sonar for some reason.

Interesting. Unfortunately, I'm not all that midi savvy... as I said, I was able to rebuild the piece in another file, and was miraculously able to reassign the same TTS sounds to the imported midi tracks, but I still can't get my AKAI MPK261 to recognize the tracks so I can continue recording, I'll have to either start over completely or build the rest of parts note at a time.