Didn't work for me either. I will say the longest playtime i got (about 20 mins) occurred by rebuilding the database, turning off hdcp and boost and removing external hdd (like physically unplugging it). But that only moderately prolonged play time before the inevitable crash and error 34787. Also, I played the entire beta including crucible with not a single crash on the same ps4 pro with all of the above settings turned on. Other things worth mentioning is that I have never crashed unless it was a public area where other players were on the screen. EDZ for example. however others report crashes from the menu. My setup is: PS4 Pro day one edition 4K Samsung KS8000 All PS video options set to Automatic or recommended Boost and HDCP on and off Physically purchased game installed on factory internal drive External HDD connected and not connected Its extremely frustrating that some original and some destiny white bundle pros are doing it? Unlikely its a hardware problem with the PS4. But if it is, Im under warranty for 2 more mmonths so I would really like to know. Just seems highly unlikely. I wish more people with Pros that arent having problems would post their set ups. Oh and as others have said, this is the only game i getting the crash. Recently have played Uncharted Lost and Agents of mayhem and FF15 with HDR where available and none of those have crashed on this system. Also, I dont recall ever crashing in Horizon so ....