I am using Ilford MGIV RC De Luxe for lumen prints in a contact frame. After about 30 minutes in the sun, the paper (and everything it contacts) develops a really terrible strong chemical smell that does not diminish after fixing or copious rinsing. It still has this terrible odor over a month later. Is this paper not appropriate for this process .. am I missing a step? I’m getting beautiful images but can’t handle the smell. BTW I am using a combination of organic and inorganic materials for exposure.. doesn’t seem to matter..