You mentioned Moza earlier, could be a plugin from them? I know they used the "default" name at one stage, possibly still are.It loads to 100% on the loading screen then crashes. I don't get to see the track or cars. How would I run it without plugins? And what could these be, as I don't remember directly installing any plugins apart from the extra dlcs.
You could find and delete the .dll file, or open up the CustomPluginVariables.json file in your UserData\player folder and set Enabled to 0,
Note this is just to rule it out, hopefully.