Randomly errors in results from Karamba

Hi all

I am currently working on a bridge project with the main purpose of finding the optimized shape of the bridge in relation to statics and dynamics. The bridge is a space frame structure and for the optimizing process I am using Karamba+Galapagos.

Unfortunately I am getting some errors when calculating the maximum displacement of the bridge, using the Karamba “analyze” component.

95% of the times (when moving a slider), it goes well. I am getting deformations of 100-200mm as expected, and the deformed shape in the Rhino view looks good.
But in the last 5%, I get unreliable deformations of 50000mm or more. What I dont understand about this is that the deformed shape in the Rhino view still looks normal.
Another weird thing is if I move the slider away from the position and then back to the same position again, I suddenly get the result of 100-200mm.
It seems more or less randomly when it gives the strange results.

The model has over time become pretty big. When moving a slider, calculation time is about 5 to 10 sec.
Could this be the reason for the errors? Any other ideas about what goes wrong?

Thank you in advance for your answer.
Attached please find the GH file.

Best regards Soeren