I just updated Kontakt 5 to the newest version and I have problems many times when I try to open a file with Kontakt in it. It seems intermittent, and it also seems to only affect the most memory intensive patches. It also seems to be happening to bridged plugins.
The attached project is an example. I had four instances of Kontakt in the project originally, but one failed to load consistently.
I have tried upgrading to the newest wrapper. No dice.
Attached flp example is at http://forum.image-line.com/viewtopic.php?f=1919&t=90223