Millipede problem

Hello,
I was trying out a simple cantilever problem in grasshopper. The cantilever is 5 m long, fixed at one side and a force of 10 KN acting at the other point. I used millipede for my analysis and I am getting a deflection of 23.3, whereas in Karamba and RFEM, I am getting a result of 20.8.
Can you please help me identify the problem. Many regards. Thanks in advance.
2023-04-12_Simple cantilever.3dm (32.2 KB)
2023-04-12_Simple cantilever.gh (12.3 KB)