Bug: I keep dragging the entire row of shapes down to overlap the box instead of a single shape. I need to fully refresh the page to reset the shape row back to its original position.
Looks like you're running your 'set lower buildings to what the higher ones need' after every buy, and it is incredibly frustrating to try to bulk-level buildings with that in place. Hopefully shouldn't be a big fix for you though.
 "Idle Intelligence"){kind=icon}
 "Casino Clicker"){kind=icon}
 "First Empire"){kind=icon}
 "Bloodline Legacy"){kind=icon}
 "Idling to Rule the Gods"){kind=icon}