While scrolling in view doesn't work on Mobile

please help me figure it out. there is a page where the first block is with a fixed position. the lower blocks run into the first one. my task is to reduce the first block (image) and set the transparency to 0 when scrolling. the animation works on the desktop and when previewed in the Designer, but does not work on real mobile devices. I created a test page several blocks to implement the animation - and there it works (on mobile). But it doesn’t work on the main page. Can you please tell me what is preventing animation from being implemented on the main page?

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