Recently, I’ve been having problems with inserting decals onto models when they appear perfectly fine on the roblox website - they’ve not been moderated. I’ve tried replacing them with textures but that doesn’t work, I’ve looked all over the dev forum about this and there’s nothing. If it has actually been moderated, the icon hasn’t appeared and why would a carpet decal be moderated? (Keep in mind this decal has worked in other games).
If the icon is showing up in ‘decals’ the decal just has to load. Be sure to choose a face for the decal, then wait a few minutes. You could start building other parts of your build while waiting.