Problem using grids with angle in nested models?

Dear OF community,

I have a situation with model nesting, which I would like to put under your analysis. When I run two nested domains with grids with an angle of rotation, the model just blows up. Under the same configuration but with nested grids without angle, the model usually runs fine.
Would it be possible for you to take a look at my model and give me feedback?  
How do I attach the folder of my model? I understand it is select Insert > Insert Image/Video File in the editor toolbar, but I don't see the way to attach.
Best regards,
César.