If you notice that your Recording/Heatmap doesn't show any user scrolling, or shows an unusual scroll cut-off, this may be the result of a known issue with Javascript and a specific CSS property.
JavaScript has a limitation where it is unable to detect scrolling when both the HTML and body elements of a page have overflow-x: hidden set in the CSS. This limitation is not Hotjar-specific, so it's not something that Hotjar Support can resolve. For more information about this limitation, see this relevant Stackoverflow post.
Solution: Removing overflow-x: hidden from either the body or HTML in your CSS should resolve this issue.