Hi there!
I accidentally stumbled upon a small visual issue, which is a very low priority and has no practical downsides but nevertheless feels a bit odd.
When quickly scrolling down a grid which contains a lot of records, the highlight (mouse hover) style is preserved as the row is being reused. This effect is very subtle, so you may need to enable a high contrast theme to notice it.
The "glitch" isn't permanent and any change in scrolling speed or a mouse movement will auto-correct it.
I tried to upload a short video (gif, 4.7MB) that illustrates this behaviour, but ran into a HTTP Error 520.