There should be a query on the cad body faces to identify which is the face with some problem for the mesher.
When you are meshing from cad body it happens it give this message:
Generating CAD mesh
First attempt:
Encountered problem when meshing face 88.
Second attempt:
Trying to recover from previous error(s).
Retrying the mesh process using a fallback tessellation method.
Mesh density defined on faces will not be used by this approach.
Start region: 1
Percent 5 done ....
Percent 10 done ....
There is no way to identify which is the face 88 in this case.
In this way you loose the chord angle control...
You can Select F88 but you can't isolate it on a layer so it's not easy to see (usually it's a very small surface)