Architect skill error:
Whenever you use the architect skill for Mechanicians, if you use it on a solid item and someone's standing on it while you use it, once it turns to ghost it'll still affect the person standing on it as a solid item, unless they jump or stand off it.

Redistributing in Totem Editor error:
If you're in the totem editor and you have, let's say, an apple in your inventory, you can redistribute your points while you're in the editor and switch to another skill set, and make a totem with that apple involved when you don't even have it anymore.

EDIT:
Demolition Skill error: If you use the demolition skill on an object that is connected by a green nail, the skill won't work.

I've just redistributed to test both of these things, and can confirm them both.