Don't break when there's no slab on init
Don't break when there's no slab on init

gallantlab/pycortex,CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,gallantlab/pycortex,CVML/pycortex,gallantlab/pycortex,smerdis/pycortex,CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,CVML/pycortex,smerdis/pycortex,smerdis/pycortex,CVML/pycortex