Hi Alan,
Excuse the delay.
The problem I have is that I try to make the mesh, in outline the file "topo_fuera", density the files "circulo1, circulo2, entrada and salida" and hardlines "Resampled topo_dentro (method equad distance, delta 0.025)".
It turns out that I get error when making the mesh (default edge length 0.05) but if I sack the density the file "entrada or salida" runs well.
In version 3.8 I do not have that error.
thank
Joaquin