hdr-environnement phantom

hello! in importing materials, it has probably been deposited a hdr, or an environment, (uffizi etc), which affects the rendering, in the reflections, by being nowhere… where is it, and how to remove it???

seems to be a “shader ball”, wich was imported with the material; But I cn’t find where to delete it!!

Have you made all layers visible?

Or you can share the scene with us?

thank you!!! yes, indeed it was an “invisible” layer… I sometimes (often) get lost in very simple things!!!