When I switch the culture of my App from English to Swedish, the Virtual scrolling feature of the Grid breaks. 

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ADMIN EDIT

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The issue stems from invalid transform style applied to the k-virtual-position div element in Swedish culture. Due to integer to string conversion that takes culture into consideration when setting the style and/or data-translate attribute, when this number is < 0, the negative sign is longer dash for Swedish culture. This longer dash is not parsable by JS and CSS which is why the translateY transform is invalid.

As a workaround for the time being, you can try adding transform style for the k-virtual-position div, so you can override the default one and the correct dash will be applied: 

<style>
    .k-virtual-position {
        transform: translateY(-1080px);
    }
</style>