Since installing the latest patch, I have had several crashes with the above error. This has occurred before a match fully loaded in Quick Play, and after ~30 seconds in Mystery Deathmatch.
Besides the concern for the crashes, I am also concerned that I might have lost endorsements for dropping from the Quick Play match.
I had this same issue on PTR, it crashed a good 12-15 times for me and all of them claimed a rendering device was lost. Now some might point at hardware but while this kept stopping me from trying Ashe out I would just play Overwatch on their regular server. Never crashed not even once while I played for hours. I play today after the update and it crashed twice within the same hour, that’s not coincidence.
I have an AMD card and updating the driver did the job. They say in the previous thread that they recognize having problems in the past with AMD setups.