QPR1 Beta 3 - Constant crashes and reboots

Is anyone else seeing issues with the devices rebooting since the latest update from 3 weeks ago? My phone is rebooting about 2-3 times a day. It seems to like rebooting when making phone calls. Also, the battery drain has gone up significantly.

Has anyone experienced these issues and does anyone have any advice on how to temporarily resolve these issues? Thanks.