CAST XMR just hangs after running fine for hours

[bostonvex]

My rigs would run fine for hours and then out of the blue Cast XMR hangs. I have JJs monitoring script running and because the values can be read from JSON it doesn't pick it up as a hang. Essentially the timestamp remains stagnant, bolded below, with no additional increments. Only solution is to force the Cast window closed and let the monitoring script restart the Cast cmd shell instance.

[16:36:35] GPU0 | 51°C | Fan 3245 RPM | 1913.2 H/s

I know I can modify the hash monitor script to do a check on the timestamp.

Anyone else seen this type of issue?


I have 2 rigs with the following config:
4GB Corsair RAM
ASUS Z270-a mobo
3 x Vega 56 stock bios, memclock at 920mhz for all