Miner 1.3.2 cant't shutdown if crash detected. System also can't reboot in this case. Only reset can help.
CPU usage in this case is 99%
Also in version 1.3.2 i can't see which card is crashed.
I am having this same issue. The only thing in the log file shows "watchdog: GPU crash detected, miner will try to restart" and then it hangs with 99% CPU usage. Version 1.3.1 didn't do this.
Can you add in the logging which GPU ID crashed to help narrow down hardware issues. Right now I don't see how logging is of any help.