algolia-search-highlight broke my element | WordPress.org

Hello, When I search keyword “米奶” The element is broken by the highlight.
Is it a bug, or my end fault?
Thanks
FYI img

Thanks

Original
<div id="div_block-46-258" class="ct-div-block product-tile__image"><img id="image-47-258" alt="Ricepathy 意大利有機無糖黑米奶" src="https://mysite.com/wp-content/uploads/2022/06/ricepathy_black_rice_milk_1.jpg" class="ct-image "></div>

After
<div id="div_block-46-258" class="ct-div-block product-tile__image"><img id="image-47-258" alt="Ricepathy 意大利有機無糖黑<em class=" algolia-search-highlight"="">米奶" src="https://mysite.com/wp-content/uploads/2022/06/ricepathy_black_rice_milk_1.jpg" class="ct-image "/></div>