Hey Kouraib, thanks for this. Yes, I kept a hole at the end of the object but when adding the symmetry it had a hard edge which i was only able to remove with the connect object, but at the expense of the lens texture.
I seem to have found a solution following your advice on the comment below, but instead of removing welding or lowering the tolerance I changed the phong mode from “As Breaks” to “Average” unfortunately, I can’t test it on a render because since I upgraded to Sonoma (per’s Apple’s tech support instructions, trying to solve another issue) I can’t render with Redshift, anymore. there is a bug not yet fixed. But that is a story for another post.
Thanks for pointing me in the right direction!
EDIT:
The RS renderer eventually loads and starts working, it just takes a while. After checking the new render I can say that switching the phong mode to Average solved the issue, thanks again!