When you are in spectator mode, you have no effects on the actual world. In the case of bubble elevators, passing through them makes sound which I don't think is supposed to happen. Here is the link to the video. https://1drv.ms/v/s!AkYqRNuSleR5gdFRkYyrWglGihDL8A
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We're tracking this issue in MCPE-161536, so this ticket is being resolved and linked as a duplicate.
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