I've been having this issue. I am sharing a project with another composer. When I get his project and open it, the Massive X preset is sometimes blank, or it's correct but plays back wrong and sounds terrible. If it's correct but sounds wrong, I can change the preset and then return it to the correct one, which fixes the problem. Sometimes the preset is just blank and I need to call the other composer and ask what setting he used. It is very frustrating and I wonder if others are having this issue.
This problem was even worse when I was using Komplete Kontrol, so I just stopped using that.
Any suggestions? I make sure all the plug-ins are up to date.