Reply To: Updating a Named-Selection forcing a full remesh?

[Rob]

If you've updated anything in Meshing, Fluent will need to re-read the mesh which resets Fluent re refinement zones etc. Boundary conditions should remain assuming the labels don't alter. 

Depending on what NS needed altering we can split surfaces in Fluent but I advise doing this outside of Workbench as it'll conflict with the workflows.