Help with static non-linear error "The solution matrix is singular...."

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Thanks for the clarification :slight_smile:

I added comments like that one regarding symmetry and the displacement BC in some forum posts but I think yours is emphasizing even more to get a knowledge base article about that in our doc! A good explanation from my colleague Richard can be found here: Pin - the problem with contacts - #6 by rszoeke

Best,

Jousef