I thought I would report this, just in case others have had the same. I have a very good system (see below), but that guarantees nothing I guess. I did not turn on any dynamic AI aircraft traffic at the first of my 2020 use. Then I turned on real traffic during some early GA runs, no problem. The problem started when I turned on a level of 55 AI generated traffic. I was at KOAK at the time piloting my A320 from KOAK to KPHX. Settings mostly ultra, some high. I took off and within 60 seconds of lift off, CTD. I restarted and did it again, unsure of what had happened. This time the CTD happened about 5 minutes into the flight plan, weather pretty mild. Third time, third CTD about 20 min. into flight plan. Then I connected the dots and turned off all AI dynamic traffic leaving static planes as usual. Since then, no CTDs. We're talking about 20 flights with the A320, including in and out of KOAK and all over N.American for nearly 50 hours worth (and the trophy thereof). No CTDs. At some point I am going to test AI traffic again, but not sure I care about it as I flew Xplane Zibo 737 and FFA320 with no traffic at all and was quite content. So that's it. Any comments are welcome of course. 
 

United001  

I shall try this, thank you. I have been getting random CTDs, I thought it could be the addons I am using. Had no CTDs when playing the game with Xbox Game Pass, they started after the update and when I acquired the sim from Steam. 

Update, tried this, didn't work. Did a clean DDU reinstall of my Nvidia driver. Still getting CTDs. Doing a clean install after cleaning up registry entries. Weird, not a single crash until a few days ago. I have been using addons last few days, I suspect that is what is causing the crashes.