Bubbles at the 3rd floor
At the third floor of Kozney's castle, there are bubbles close to the entrance. The first bubbles can be passed with Disarm, but then I cannot pass the second bubbles. Argimon's guide http://catacomber.com/discussion/20/hero-of-lukomorye-iv-argimons-guide-to-his-castle says that Disarm must be cast twice, but for me this does not work, I am still pushed back. What are the exact actions to pass them? Can wrong actions make them unpassable?