I usually have pages zoomed into 150% because of my screen resolution, and I noticed this when scrolling down my profile page using Google Chrome:
Seems to only be happening to Homestead and Warrior, not sure about the others.
This happens to anything that uses a sprite maps on the website. For the longest time I thought it was some sort of bug.
I think this is a Chrome rendering issue more than it is ROBLOX’s fault. All they do is use the method in CSS to be able to do this and the browser does that. This issue is not happening for me in Safari.