FEM is asking for update. Kindly update the mesh and then check.
Please note that as per "small feature tolerance" in model cleanup settings of meshing interface, polygon geometry get changed.
I think, inorder to mesh the cylindrical surface, edges are created here.
But, what might be the issue here.( Is it causing any mesh quality issue ?)
As you are going to share the FE entity only to the solver.
I "split face" (shown in image) and then I could confirm that mesher didn't split near by holes.
During meshing cylindrical face will be splitted . Hence you can do manually split face.
I don't have NX v12 , I just tried in the latest release and hence even if I share, it can't open at your end.
Actually I did "split face" by selecting one of the quadrant points of top circular face of the cylinder and another corresponding quadrant points of bottom circular face of that cylinder, then meshed.