It takes some experimenting and trial and error to narrow down exactly where the CTD and Freezes are triggered. Take each step one at a time and then record exactly the step causing the CTD. So, a start up and go immeadiately to the EFB, does it crash the moment you go to the EFB and click on the small box “SimBrief” to import it? If you’ve done nothing else, then restart with absolutely no add ons of any kind. At any time you find it works, then you have narrowed the issue down to what’s causing the problem. I say all this because several of us have narrowed it down to the “INIT req” button and not SimBrief. So that tells us SimBrief itself is not causing this, but something else related to SimBrief is the problem.