Clothing Thumbnails not loading

I’m trying to make a catalogue system in my game, and I’m using a table full of clothing IDs to generate the tiles which are used to add items to cart.

The issue is loading the images for the clothes. I do not have custom images, instead I am trying to set the image of things using rblxthumb, and it worked for a while but no longer does.

The assets here are shirts and pants.

assetImg.Image = "rbxthumb://type=Asset&id=" .. clothingId[1] .. "&w=420&h=420"

The IDs print completely fine and are accurate: what am I doing wrong?

already answered