Even when the modifier are not instantiated ?
What Magic is this !!!
What if…there are TWO of the same modifier applied to one of the objects ? Which one will be affected ? EXPERIMENT TIME !
Thank you iceythe !
If you applied a second subdiv to one of the model and alt+click on the ilteration, the second subdiv will NOT affect the other meshes let alone the subdiv above the stack(visually above in the GUI).
Even AFTER you remove the previous subdiv modifier, any attempt to Alt+Click the new subdiv modifier will also NOT affect the rest of the selected meshes.
The only way to reset it all is to remove even that subdiv modifier altogether and add a new one again, then alt+click will set all meshes again.