since version 1.6.4 one of my gpus from one of my rigs crashing every 2-6 hours and miner hangs during try to restart. But miner not hangs like process and cursor just blinks but it can't be terminated by windows task manager and my mining watch program thinks that miner is workin'. Helps only restart of the windows. It happens 2-4 times per 24 hours https://thumb.ibb.co/humqtz/2018_08_01_16_05_55_2.png
