Personally I would suggest you switch to the Standard mesher. We have a variety of external aerodynamics tutorials using this meshing algorithm that you could use as reference( like this one for example).
Another suggestion would be to simply fix those two surfaces in your CAD software tool and re-import the model. It is better to eliminate the source than trying to resolve the issue with additional settings.
Let me know what you think Which CAD software are you using by the way?
I also think that the best solution is the correction of the geometry.
However I have a hard time trying it, becasue when I am changing something on the geometry, other errors ocour, so this is a time consuming trial and error aproach.
In the project you sent above , I see the Hex dominant parametric algorithm though, not the Standard mesher. Is it possible that you included the wrong project link?
Yes exactly.
There was a cavity inside the torso model, which caused the problem with the standard mesher.
So I cut this part and then refilled the area and it finally worked.