CTD's are caused by Data Connection Online Functionality. The current fix is

[Pieter2427]

@ViewedQuasar810

Definitely the issue is on the MS side

Constant CTD every flight now (ntdll.dll)

POSSIBLE FIX Hello everyone, Following our investigation, we are recommending you complete the below steps to resolve the ntdll.dll crash. Manually run Windows Update (Start → Check for updates) and install any available updates. (Note: there may be no updates available) Perform a full reboot of your PC (even if there were no updates detected in Step 1) Launch Microsoft Flight Simulator and test if you still get the ntdll.dll crash. Some players who are reporting in this thread that the ntd…