\nThe “contact status has experienced an abrupt change” is a warning message, which tells the user that the contact status is rapidly changing between “closed” and “far open” without going through the status “near open”. A more stable solution could be reached if the contact is changed between “closed” and “far open” via “near open”. This warning message usually does not cause a problem when solving a model. But it could indicate that the model could have “open” contacts or rigid body motion. Could you please check your model to make sure the model has no rigid body motion and all contacts in the model are closed? The initial contact status can be found by inserting a contact tool and then generating initial contact information under Connections. <\/p>\n
Regards,
\nVinayak
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