Skirt not generated for some models.

[wonka]

I printed a model with the skirt and it worked just fine, then I imported another model I used the same settings but it is not printing the skirt, this is very annoying because I really need it. Any reason why the software decides not to make it for some models?

Thank you.

[CompoundCarl]

Works fine for me. Why don't you post your factory file (go to File > Save Factory File). That will make it easier for others to help you