3ds Max 2021 and Arnold 188.8.131.52 (2021) - I have some elements with a bitmap materials on them, some are multi-sub. I would like to simply render an animation so the elements disappear over time. Opacity works in the viewport, but not in Arnold. I have done a lot of research and have applied the Arnold Properties modifier and unchecked the "opaque" setting, but opacity is still not working and the element appears solid. The material is a physical material. Any ideas?