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