Index exceeds array bounds when subdomain is selected

Selecting subdomain "6" gets the error shown below:

"Index in position 2 exceeds array bounds (must not exceed 5)."

This occurred after splitting S3 before which action there were only 5 subdomains.  A 6th Subdomain was added by the split of S3.

IndexExceedsBounds.fea

In spite of the error, subdomain #6 could be selected and its parameters set.

If you need more details please let me know.

Kind regards,
Randal

I expect this is an issue due to the large ~1000 aspect ratio again. I will try to have a look when I can but even if the geometry engine is fixed the meshing will be very hard. One can basically say that if you can't actually see one of your domains without zooming in then you will have a hard time. In this case one typically tried to model the small domain as a single point source, this is what the point object is for, to assure the location of one or more specific points during mesh generation, on which later constraints or sources can be applied.