That sucks!
I really like the DS Tracks and have used them a couple of times i.e. on my Panther G and Jagdpanther. I also used them on my Brummbar because seeing as it has Schurzen fitted you can't see the return rollers and the lack of any sag between them which I normally like. I'm also using them on my current WIP Tiger I as they are ideal for them - no sag required!
I've always painted them the same - primer, paint (thinned approx. 50/50) and the usual rust and mud weathering.
Were there problems with your paint at all? Is it your standard stuff? If everything is ok on the paint front then I'd be inclined to think about possible grease/nasty stuff on the surface of the DS before painting which stopped the paint 'gripping' or no primer being used.
I always thoroughly wash my DS tracks and prime them and paint with Tamiya Acyrlics. I think you you should strip the paint, wash the tracks, prime, paint again and take it from there. Thats assuming you can remove the tracks from the model - are they fitted yet?
I definately think it's the paint struggling for grip on that DS surface - a good primer should cure it if you try again, Wildman 
Ben 