Your IV is missing anchors, which are present in original article. https://instantview.telegram.org/checklist#3-3-supported-elements "Anchor links must work properly on IV page if anchor links exist in the source." This is pretty big article, so anchors are a must have in such a case.
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https://instantview.telegram.org/checklist#3-3-supported-elements
"Anchor links must work properly on IV page if anchor links exist in the source."
This is pretty big article, so anchors are a must have in such a case.