oclHashcat64.exe Process just kills itself?

[Szulik]

i also sometimes got this bug. In my case speed goes to 0 only when start another oclhc session. When work only on one session this isseue never happend. Second question is - do You use rules ? I dont know why but in 90% case when one session work and run second with best64.rule after couple of secs session with best64 just stop. When i kill it and start another one with other rules all goes fine ;/