It is well known that bubble film pops as soon as it touches a dry spot.
However, after closely observing the operation of this product, I noticed an exception. The exception can be seen in this video.
At the end of the video, the bottle is placed in the center of the reservoir, but when the bottle is placed off-center and the same operation is tried again, the film pops. This exception only seems to happen when the dry spot passes "right in the center" of the film.
I don't think the reservoir material is a special material. It is a very common PP.
I am not sure on what principle this could happen.