It seems the Multi RS (presumably other RS too) keep scanning for a maximum power point even when in a limiting mode.
My Multi RS is slightly over paneled and clips out at 6000W over noon. While running at 6000W, it keeps scanning and dropping production while scanning. I really don’t know what the scan is hoping to find. It’s already at the max.
I would propose the MPPT pauses the scanning algorithm once it is already at a max