probably some problem with the batch file you have to configurate.
Are you running your cards using codes on the miner?? Normally hangs occur when some cards have a big overclock that they cannot do, or excessive undervolting.
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool 149.202.89.224:4444 -ewal '''' -epsw x -cvddc 920 -mvddc 920 -minspeed 175 -ethi 6 -asm 2 -ttli 56 -tstop 72
this is my start file