Quick 2 mins out from course work to write a possible solution.
Since no other objects seem to be affected, and the shapes on the table are triangle based, could it be that the table has some bad, or inverted, surface normals?
A quick way to check would be, import the table into Art of Illusion, then export it making sure to tick "Always write surface normals"
Bring that version into Sweet Home and try another render.
Some good models there MarcelV, did you model them?
Really liking the window light.
Hope what I have written makes sense, been up nearly 34 hrs without sleep.
Right back to course work!
David
