Combine merge mesh bug

Hello, when using the combine merge mesh while my object is subdivided, Nvil does not respond and continuously loads.

If my object is not subdivided and I use combine merge mesh it works perfect.

Edit: I have tested this on two objects with subdivision surface and the combine merge mesh works but it has subdivided my objects.

Is it possible to use combine merge mesh while object is in subdivision surface and get a combined mesh that is not subdivided?