Not a useful answer, but oh bother, this is what VAG-COM lets you see! Remember that most VAG forums have a dedicated VAG-COM or VCDS section and I'd expect that a Europe based RossTech person will be watching out for threads. Try repeating this posting in there.
Right, I've had a look on Ross-Tech wiki, so, do that you think that you have accidentally changed any of the soft coding? One fix might be to ask someone here, in the VCDS dedicated forum, with an identical engine ECU, for a readout of their soft coding, do record on paper all the soft coding in your engine ECU before changing anything.
Edit:- Okay, I see that you have found the VCDS section, good luck!
Edit again!:- ah, I see that you have not found the VCDS section - yet - try that!