Nonlinear transient analysis does not support nonlinear contact analysis?

Hi, 

 

My load step is nonlinear transient and my model contained the contact.

 

Output message is as follows.

 My model does not have a linear analysis SUBCASE.

 

 'the gap/contact behavior depends on the initial open/closed status and does not change.'

-> It means contact status is not updated.

 

 

But the status is updated for each iteration in my results.

Why does the message appear? is it just only information?

 

 

Thanks.