Hash rate played


i have hive 4.2 and have no problem until have this err Claymore Reboot: Claymore Reboot
i think upgrade the hive have problem solved but i have new problem on rigs
my hash rate played from 135 to 145 and not stable with same setting
i have 6 1060 3g and my overclock profile
CORE -100 MEM 1600 PL 75


i have new issue on last ver after 4 hour work and hash rate 135-146 has this err
Claymore Reboot: Miner thread hangs, need to restart miner!


i downgrade to Version: 0.4-20 and hash is stable