So I think this is a glitch. I have 6 open spaces and the ethereal arrow didn't want to place right...it kinda killed my run. Thankfully it was just starting, but still, big bummer :<
Yep there's a glitch where items that summon items(like old log or ethereal wand) make grids that can't be placed light up. The arrow wand can only summon arrows on it's column, afaik.
