My decals won't load for mouse cursors?

Here are all my variants and attempts on uploads

This one is white so you can't see it unless the background is set dark https://www.roblox.com/library/1898679429/Aimthinger

https://www.roblox.com/library/1872093750/mOUSE

https://www.roblox.com/library/1852771339/sight

mouse.Icon = "http://www.roblox.com/asset?id=18986794329"

I heard that you're either suppose to change the ID to one less or one more i forgot, but I tried both and neither work. On other decals when I make the ID's one less, it goes to the same decal,but somewhere else. When I do it to my decals it takes me to a whole to item uploaded by someone else.

The problem is that the decal ID (what you see on the website) and the actual texture ID (what gets loaded) are different. Place your decal anywhere and copy and paste the asset under its "Texture" property into your scripts. This will be the correct ID.