I noticed with my missing trees, Palm, Banana and Sago plant. In the scene box, with the faulty trees, they are missing a category and it's not shadows, it's the frame etc. I tried everything that usually bought my trees back, I had a extra tree folder in another drive that I copied from thinking iClone 6, was changing the file. Nothing seemed to work now. The trees show fine in iClone 6. What I did next I looked at the project settings using the Edit pulldown tab, I looked at the project settings and I noticed the box for displaying the dummy was not checked, I checked (enabled) this, closed and re-opened iClone 7, placed the banana tree in the blank scene and finally it appeared, then I tried the 2 other trees I needed and they appeared. I finally loaded the project that I had the missing trees, and all the trees are visible again. Is iClone 6 thinking these trees are dummies? I hope so, so far everything else I tried failed after a while and I hope they show up when I render video. Keeping my fingers crossed.

Home built; ASRock X570 Pro 4, AMD Ryzen 9-5950X CPU, AMD RADEON RX6900XT, 16GB video card, 131GB of RAM.