'bad mask type error'

I get a ‘bad mask type’ error when attempting to run a homogeneous refinement with masking set to ‘null’

Same for me. Have you found a solution?

Hi @mce, if you are trying to do a refinement with no masking, the easiest way is the set the “Dynamic mask start resolution” to a high resolution (e.g. 1Å) and leave all other options unchanged.