I looked through people's posted error reports to see if there was any similarities and it seems out of them the majority have been using Steam, and one was using Windows. So willing to bet it's due to the new launcher and some process it does, I'd say for now since we have the option try switching to the older launcher and see if it does anything different.
This really needs to be looked into for both sides so if anyone has these issues, please post your error reports so we can get this noticed/make a new thread just for your specific error report.
