Hello, I had a similar problem when I did a linear regression analysis，it  stops at the "Rubin's rules" step, and the light which means "processing status" is read.

And below is my Command-line and batch usage: 

sdm MyLinearModel=mi_lm age,0+1+0+0+0,50,substance,8.

I'm not sure if this is correct, I only set age as a covariate.