Midi info not audible

I'm having a problem with midi tracks either playing the info from another track or not playing at all. I have a track where the info is visible but I can't hear the part. I had to "reassign" my soft synth to this track because it somehow lost it and was trying to play TTS... now I can see the midi info but can't hear it... as a matter of fact, many, if not all of my Soft Synth tracks have somehow lost their relationship to the plugin and have been reassigned to TTS, even stuff I recorded as a Rapture session... any thoughts?

So confusing, and such a drain on time. I have a cello part, for instance, when I have that track selected, and I have it soloed, what I hear is a synth part from a completely different track. I need to mix this piece and have no idea how to fix this.

the instrument I used is correct for the soloed track, but as I said earlier, I had to reassign it... I don't know anything about a port, there is no port option or mention in any menu I pull up, I don't know how to assign the midi channel because the "create soft synth" function does that when you create the track. Midi is a mystery to me, I have to depend on the software to work correctly.

I think when this happens it's a simple matter of not totally understanding how midi tracks work. First please read this thread so I don't have to repeat the same stuff. Thank you: 
http://forum.cakewalk.com/Issues-with-Sonar-Home-Studio-m3721656.aspx
 
 

Read over that link and wasn't able to glean anything I can use.

Okay, I admit, that's news to me that plugins aren't instruments. I just don't see how all this addresses my problem. I'll try to be more clear...
 
I have created "Instrument Tracks" by right-clicking in the Track View and choosing "Insert Instrument". When the "Add Track" box appears, I use the "Instrument" pull-down menu and choose an instrument, in this case "Cello" (whether it's a plugin or not, though they were all called VST Plugins when I got them). I don't mess with the Input or Output at all... then I select "Create" and the track appears. I play the part on Akai controller, all is right with the world.
 
Down the road, I add another instrument track (a Rapture synth), and I make a reference mix. I decide I don't like the mix and go back in to remix it, but I notice I'm not hearing the Cello, and the Synth sounds different. So I "solo" the "Cello" track, and even though I still can 'see' the Cello part's midi information, I don't hear the Cello, I hear the Rapture synth part, even though the synth track is not in solo. When I solo the Synth track I hear nothing. I open the "Plugin" window for the Cello track and see that it is not even using the instrument I chose, it is using the TTS-1 default. I reassign the track back to the original instrument I chose, but I still don't hear the Cello part, I still hear the Synth. I see that the Synth has also defaulted from the Rapture to the TTS-1, I reassign the track to the Rapture settings I used. Now I hear the correct "Synth" part, but only when the "Cello" track is in solo. I finally found my Cello part, but it is being played by a Strings track. I had two String tracks, but since the Cello is playing on one of the String tracks I have lost that second String part altogether. I'm trying to save this mix and don't know how to make the tracks I have already created play the correct parts. If your information does give me what I need to fix this and I just don't see it, then perhaps I should just go buy an old Porta-studio.

I'm also having the same midi problems. never had in the past but somewhere - possibly around this last windows update in the fall - midi tracks would behave exactly as you described.  Honestly at the time I was more concerned with Sonar being dropped by Gibson and moving/starting new projects to S1 or Ableton where midi and softsynths work fine. But I have been going back to some old Sonar projects now and it's driving me nuts. I'll have to reassign synths/addictive drums to midi tracks to get them to play...and than if I go to another midi track I'll either hear the wrong instrument or it won't play at all. I've been having to get a midi track to play properly and than bounce it down to audio and erase just so I can work on another midi track.  Something is definitely wrong

If anyone else is interested enough, Cactus Music posted a great link here to a conversation with some good info, and I'll definitely be referring to it moving forward, but I can't glean from it anything that helps me fix my current issue... if any of you want to look at it and let me know if I missed something, that would be great.
http://forum.cakewalk.com/Issues-with-Sonar-Home-Studio-m3721656.aspx
 

Sorry, maybe I'm just dull, I don't see how that addresses hearing the midi performance that's recorded on Track 13 when I have Track 11 in solo, and hearing the midi performance that's recorded on Track 11 when I have Track 10 in solo, or how to correct it... These tracks were created by the "Insert Instrument" option, when I look at the midi Input and Output, they are invariably "Omni", "Midi Omni", VrtlCntrl0" for input, and "Master" for output. Reassigning the Input midi channel up and down the options doesn't bring the correct performance to the track. I'd post a video if I could.

I do find the Enable MIDI Output, in no instance I do find it "checked" or "selected", but the option is greyed out anyway. Enable MIDI Input is checked.

OK I just tried a simple instrument track, Far as I can tell it works just like a midi track but the instruments is on the same track. Actually seems this would be impossible for the midi to play anything but this instrument! Other than what scook is getting at about enabling midi output which I understood was for using outboard gear so not sure why you would have that set up. It certainly not a default setting.  But You do have virtual controller showing as input which I would change to NONE just to see. 
 
At this point all I can think is you have re named the tracks wrong. Naming a track Cello doesn't mean it will play a cello. Once again check the patch P box and make sure you have the correct instrument patch selected. 
 

 

Well, I certainly don't name it Cello so it will play Cello, when I create the track I'm choosing a Cello Instrument plugin (which in this case happens to be called "Container"), I name the track Cello so I know it's the Cello track.

Cactus Music
I notice in his screenshot the inputs are set to Virtual Controller 0. Does that come into play somehow? It's another thing I have no clue what it's for and can only guess.

The virtual controller is just like any other controller except it is driven by the PC keyboard. Inputs set to it should only see data from it eliminating the chance of getting data from other sources. I just dawned on me the OP's .sig is not accurate. Tracks set to a specific controller will not change to All Inputs > MIDI Omni when input echo is enabled.

 Your just blaming the software? Ya, I realize it's all Greek to someone new to MIDI but we all have to go through the process at some time. And that's by reading, or watching videos. 
 
And Container seems a weird ?plug in?  to use , A quick search for it leads me to beleieve it's a VST container to run VST's in programs that don't support the format..  please try something we know works like Dim Pro or even TTS'1. 
You problem might be this "container"  what ever that is.  
 

Ahh, yes it sort of looked like a none professional set up and possibly 32 bit as well. 
 
I will wait for a screen shot that shows all the in and out boxes clearly. The synth rack would also be nice.