i tried a youtube abaqus problem for which I am having issues in getting a result like the one received in this tutorial, the diagonal truss members are deforming excessively, the horizontal and vertical members remain straight as per the sketch. just any hints of what the issue could be. https://youtu.be/u8yXeyFlWjY?list=PL_Z4wsnQjTNELCgIbabI0CFC8df7NTLO2&t=591