I hope its me thats getting it wrong because otherwise there is a serioud flaw
 
Any idea why when I have a midi track triggering a soft synth eg Kontakt and then I go to freeze that track it comes through as silent?  It seems a sporadic problem that I have with the whole x series (not just x 3) one minute it works then the next it doesnt
 
kills my workflow

Also when I unfreeze a track the midi info is there on the midi track but all of a sudden it doesn't trigger the soft synth....im lost and very frustrated

I downloaded Kontakt 8 (free) last week, now I have to hit the audio run button after I do anything in the piano roll, it also knocked out Channel Tools and got a message that said channel tools would work with my system. If I had any hair I'd be pulling it out! The only thing I can think to do is remove Kontakt, or at least the majority of it. They give you kontakt 4,5, and some kind of synth program that I really don't need.
 

Well, I cannot confirm your issue
 
have not used kontakt for a while but took an x2 project, opened in x3, loaded kontakt, pulled in an ep recorded some stuff, freeze ok, unfreeze ok.. everything operates as it should here...

I was having midi dropouts until a forum member mentioned that I needed to up my midi playback buffers.
It's under Edit -> Preferences -> Midi Playback And Recording
I set it at 500 and now my midi is working fine.

Got my midi buffer set to 1000ms and still getting the problem

PTheory
Got my midi buffer set to 1000ms and still getting the problem

Can you a try doing a realtime bounce instead of freezing?
 
-Right click on the Freeze button and select "Freeze Options"
-Uncheck Fast Bounce and check Audible Bounce
 
This will take longer than usual but it's the results that I am interested in here.
-DG