I have tried many ways to recreate this problem. I have a 100% "success".
Here is what happens:
1. I start/load a project with a Komplete Kontrol instrument (one or many)
2. I close that project - Cubase "unloads" the instruments from that project.
3. I load another project containing Komplete Kontrol and Cubase crashes (if no Komplete Kontrol in project it works.)
4. Next time I start Cubase I get the "safe box" dialog box saying "The application was terminated with an error while executing the following file: C:\Program Files\Common Files\VST3\Komplete Kontrol.vst3
And yes, I have reset Komplete Kontrol both by removing folders and removing registry folders. And yes, I have all programs updated to the latest version. And yes, I have sent the files to Steinberg, but I doubt they are the ones causing the problem.
This is clearly an issue with Komplete Kontrol. I can still load my projects, but It is quite a pain to have to reload Cubase all the time. I have contacted support. I just wanted to see if anyone else has this issue and perhaps getting NIs attention.
Regards