I am running system with 3 Nvidia gpus 3090, 2080, 3060 ti. If for some reason gpus are reset like installing driver, or a gpu overclocking error/ driver crashing the gpus are swapped in layout. What I see is that 3090 is swapped with 2080 or 3060 ti. Those gpus have different values which can be monitored e.g. 3090 has memory junction temperature. So, when 2080 or 3060 ti is swapped in layout after crash, there are blank spaces in layout and some values are thrown at the bottom. In my custom layout I have 3 columns. To reproduce this you would 2 or more gpus and can disable/enable a gpu in device manager.