I moderate the ChuChu Rocket! board and I've edited the trophies and icons but they don't seem to have updated after like 3 hours. I've tried the Ctrl+F5 to clear my cache a few times and tried different browsers.

I can see custom icons on your board. Are you saying that you updated those?

Yeah the icon for ChuChu should now be a rocket, I set it 4 hours ago. Also cleaned up the trophies.

Went to bed, woke up and it's still not updated... weird

Finally got updated recently just to finish this event.