Inductance in a Three Phase Transformer Model

[ducking]

Can somebody help me?
this is my problem, I'm modelling a three phase transformer and getting the L(inductance) matrix.

I know than
L=Ll+Lm

where Ll= leakage inductance and
Lm= inductance of magnetization

I also know that Lm1=(n1/n2)*L12, and Lm2=(n2/n1)*L12

where L12= mutual inductance.

but when I try to get the leakage inductance (Ll1=L11-Lm1) I have a negative leakage for my secondary, I'm using Etype=SOLID117 and Etype=source36 for the coils.

I did a monophasic transformer before and I didn't have this problem, can somebody try to explain me what's going on?


greetings
ducking