I’m encountering a similar issue, hoping RomanL can shed some light (and cast the right shadows) on why Cast Shadows As Two-Sided isn’t working for me. The bowl of fruit is one mesh, came from one scan with the table, but I sliced that mesh to work with the bowl of fruit separately. I tried closing the holes left in each, table and bowl, but that only worked on the table, not the bowl, some bad polys wouldn’t close. I’m wondering if that’s relevant, would think this being a surface mesh, not watertight or “light tight”, that this is precisely where Cast Shadows As Two-Sided is appropriate. No? Thanks for your help.