Yeah that's what I kept finding in searches... seems to be the total opposite for me, though, as I'd never had them before. And I've already updated, unfortunately, didn't seem to make any difference.
Only via event viewer which seems to be blaming PhysX3_x86.dll
The game just waits a seemingly random time and freezes. Can't replicate it at all in SP. Explosions, vehicles doing stuff, etc. all works unless I play multi (where it used to work but now doesn't feel like it).
Edit: also I see a lot of people join and d/c without talking whenever I test on a somewhat populated server.