NaN found in stiffness matrix element. [Error code: 36]https://communities.bentley.com/products/geotech-analysis/f/forum/211771/nan-found-in-stiffness-matrix-element-error-code-36Hello everyone , I got this &quot;NaN found in stiffness matrix element. [Error code: 36]&quot; in dynamic analysis &quot;Earthquake&quot; I got this error just if I use Very stiff or soft rock material in HS-small model , and using compliment base boundary at theen-USTelligent Community 12RE: NaN found in stiffness matrix element. [Error code: 36]https://communities.bentley.com/thread/643300?ContentTypeID=1Wed, 07 Apr 2021 15:43:33 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a3a0fdd9-382e-49fb-9d1f-1d2dc3489773Stefanos Papavasileiou<p>Dear Zaid,</p> <p>It is difficult to judge that from the details shared on the forum.</p> <p>In order to be able to assist you with your project and identifying the reason for the problem you experience, please submit a service request.</p> <p>Then, one of our support engineers can help you in detail:<br /> <a href="https://apps.bentley.com/srmanager/ProductSupport">https://apps.bentley.com/srmanager/ProductSupport</a></p><div style="clear:both;"></div>