You can check the correctness of each Ke matrix element in the model. The check is not time-consuming and recommended before a trial analysis of the FE model.
If the calculation process reaches the first iteration, it means that it proceeds correctly. You can stop the calculations manually after this verification.
If the verification fails, then an error 3016 displays during the preparation of the EBE preconditioning.In this case, the calculations are interrupted before the iteration process starts.