Have anybody else encountered this behavior, some props becoming invisible - I mean, literally invisible - when rendered with Iray in iClone7.71/7.72? :)
On my scene I found two cases:
- on a plate I have several apples, all perfectly visible in normal rendering, but when rendered with Iray - the plate has disappeared, apples are "levitating" above the table (as a funny note, I would expect apples to dissappear, no the plate)
- on the same scene, there are also on the table three bottles, from which, on Iray, two are invisible and one barely visible, like being translucent (like HG Wells' Invisible Man)
Apart from this, the overall lighting is absolutely, totally different than in the normal rendering, like there's is a completely different system of light sources - it looks very cool, but is not at all what I wanted or expected.

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Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12