Error in writing watch-point for received mesh

I am still quite puzzled what goes wrong.

On the CalculiX side (so in serial), the x and y coordinates are still swapped and the x coordinate is always mapped on the same value, 0.09. What is the mesh width at the coupling interface in your solid mesh? Could you also please upload the mesh export on the CalculiX side? You already have it your config:

<export:vtk every-n-time-windows="200" directory="vtk_calc"/>

One timestep is enough. You can directly upload it to Discourse as well.

Btw, your coupling convergence is quite bad. Try to increase the accuracy in FASTEST and/or CalculiX or decrease the strictness of the convergence measure in preCICE. Afterwards, you could tune the QN:

<max-used-iterations value="50"/>
<time-windows-reused value="10"/>