do you (or someone else) get a realistic solution?

I've shorten the part that I pull very much, but it only run through, when I change the minimum step time to a very low number.
But the results make not much sense.
They look like that:


Or it stops with the error 'time step too small' at that point:

Could you maybe attach your file, that I can compare the settings and run it?

Many, many thanks again!

Best regards