hello, i recently moved over to easyeda PRO, and i'm trying to clone/copy a PCB to make a new version. when i right click a pcb and select clone it opens up a new window for me to select a existing project. when i select the same project that's open nothing seems to happen. when i right click and copy a PCB and try to paste it. the paste option doesn't even appear(it's greyed out) if i make a new PCB and open the old one. it doesn't even let me copy/paste the PCB over. am i doing something wrong or is it bugged?