When you use the shaman skill to change the companion cube to a ghost object mice still come in contact with it. The bug also works the other way around.

I think problem fixed.

Have you tested it or do you only think?

Do you mean when you use the Architect skill (the one that changes the transparency of a summoned object)? If you don't know which skill i meant, then this: http://prntscr.com/627c5z

Then, this glitch was from a long time. If the object was summoned as a normal object (not ghost) and the mice was trying to move the object while running, and the shaman used that skill, you are still able to jump on that item..
And if it's as a ghost item, and you're in/through it, and the shaman used the skill, you are able to go through the item even that it shows it's not a ghost item..

JUST if that's what he meant, if not then eh.

Yes that's what is meant

I just tried it now and it's still having the glitch. And yeah this bug/glitch needs to be fixed.