Doktor,
i also have issue to report
goes like this
have 4 rigs, all 4 of them go from xmr stak to srbminer1.5.8
each rig 6x Vega 18.5.2
all 4 rigs run super stable with srbminer
one of the rigs i restart for some reason after like 2000 minutes of uptime
other 3 rigs run for like 3000-3500 minutes of uptime and then all crash at approximate the same time
the miner stopped saying GPU hashrate 0, restarting miner, but miner could not restart, even by process kill or try to reset PC, it hangs in reset process. Only hard reset help
Why would all miners stop at same uptime?

Anyway, I reset all so can´t really say what happened or give any more details, but i will monitor this time and see if it happen again
Otherwise, i fell in love with your miner.