NI Session Drummer Track Failed After Minor Tweak

Hey Folks--
 
I'm pretty frustrated right now, and am just starting to try to figure out what happened, but more importantly how to fix my issue. I could use some help from you if you have some pointers as I try to restore my drum tracks in my X3 project. I think having a 2nd (or 3rd) person to consider what's going on is what I need.
 
Here's the deal: I have Session Drummer playing through NI kontakt 5 player. Each piece of the kit has a separate output in SD, and each output is assigned a dedicated track in X3. Each dedicated track feeds to either a drum bus or another bus I created for the toms--then they feed to the master bus.
 
Everything was dialed in and I was actually doing the fine tuning on the mix but the floor tom (tom 3) sounded kind of weak, and so I wanted to go into kontakt/session drummer and see if I could help it out in the parameters there. I increased the attack a little, added a little Room influence and that's basically it.
 
When I played the project back, all the drums were whacked. They sounded thin, and abnormal--not like session drummer at all. Also, the track levels were pegging to the max. The really really sad thing is that after the tweaking in SD, I did a project save--I don't think an undo would have mattered, but I could have exited X3 and then just lost that last tweaks.
 
I have the drum preview enabled in SD so that when I click on a drum in the kit interface, it plays. When I do that now IT SOUNDS FINE. That's what's weird. It's only when I play back the project that it sounds wrong--not when I preview the kit in kit view.
 
(EDIT) When I click on a MIDI note (drum) in event view, it has the doinked/bad sound.
 
What I've done so far is reload the samples in kontakt--no effect. I just tried to freeze the drums tracks in case there is a memory or resource problem--nope.
 
The good thing is is that my MIDI tracks are intact and if I just have to load a new instance of SD and copy the MIDI, I can do that, but I want that to be a last resort as I will lose some of the tweaks and track fx that I've dialed in.
 
It's really strange that they got all whacked from a simple tweak of a single instrument like that. I used to have issues with Abbey Road drummer in may last DAW because it ate all my available memory and I didn't have any left to give, but I haven't had that issue in my current DAW, and even in the old DAW, freezing the tracks worked.
 
Any ideas or suggestions are very welcome. If you need any more settings info--please ask. I'm going to try to get this solved today so I can stopped being stressed and move on with the project.
 
Thank you all so much!
 
Stephen

konradh
Long shot, but did you look in the MIDI event list to see if there are any unusual controller messages that may have been entered via the GUI?  The only reason I think this is that you say playback sounds weird, but the interface sounds fine.  Controllers would might reset to normal values when you stop playback, but the reset to their wrong/weird positions when you start playback.
 
In other words, if there is a Controller 48 with a value of 127—I just made that up—when you play back the track, Controller 48 would go to 127 and make the drums sound weird.  When you stopped playback, it would go to zero and the drums would sound fine.
 
 

Long shots are still shots, so I appreciate it. I checked the MIDI events and nothing seems strange EXCEPT...I can see in event view that all of the MIDI events starting at one marker that delineates a song part change moved like 23 semi-tones down???!!! I dragged some song parts up to where the kick drum matches the first part of the song where the MIDI notes are in the correct pitch, but not all of the instruments match, so...
 
Somehow the MIDI pitches/keys got whacked--at least that's what it looks like for now. What I'm going to do is go back into Session Drummer and check the MIDI pitch of each drum and then go back to the event view and change each instrument to where it should be. I think that will work.
 
I forgot to mention in my original post (but just added it) that when I click on a MIDI not in event view, it's whacked there too.
 
I'll keep you posted.
 
Thanks!