FSceneCaptureDetails::OnGetDisplayCheckState crashes on the check(Data) since Data is nullptr. ShowFlagSettingsProperty->AccessRawData is adding that nullptr, when ShowFlagName == "Antialias". This happens in one of our blutility, where we create a Scene Capture Cube actor, we trigger the capture and we destroy the actor at the end.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-72199 in the post.