I love the art and music of this game. 10/10 on those fronts. The story was also pretty mysterious and interesting!
Though, in my experience, the game was a bit buggy. I read the warning about spirit hitboxes on WebGL so I downloaded the Windows version and I'm not sure if this is what you meant by the hitboxes issue or not, but sometimes I just couldn't drag them and sometimes I'd be reading one spirit's information and it'd disappear immediately.
But apart from that, this is a solid entry! I'd love to actually see this made into a full Steam release. Even further expand on the lore of The Great Work. 👀