I started getting a strange unspecified launch failure error running ETH+SC.. It'll work for a few shares, then crash and restart. Does anyone know what's causing it?

maybe a fiew more details...
maybe too over/under clocked/under volted
how many gpus?
maybe faulty riser
faulty gpu....
and so on...
maybe only update the miner....
Happen to me too.. i don't remember how i resolved.
Maybe is the -dcri problem.
Try to put -dcri 16 or 14