Having some issues with sgminer-kl

Using the same command line, running it through mindminer or cmd it'll crash immediately, but if I use that cmd line in a bat with

set GPU_FORCE_64BIT_PTR=0
set GPU_USE_SYNC_OBJECTS=1
set GPU_MAX_ALLOC_PERCENT=100
set GPU_SINGLE_ALLOC_PERCENT=100
set GPU_MAX_HEAP_SIZE=100

it works fine.