"SliceCenter" problem

Hello,

Recently I was making a plugin GUI, and I wanted to use Class Images but when I use any Class Image this warning comes up. (I use game.StudioService:GetClassIcon("[CLASS]") to get Class Images)
image

(Text)

SliceCenter ((427.000000,0.000000), (471.000000,16.000000)) is outside the bounds of imageOffset ((0.000000,0.000000), (16.000000,16.000000)) for GuiImage[StarterGui.ScreenGui.Frame.PluginFrame.ScrollingFrame.TempFiles.Container.ImportedFiles.ImportedFile_Image.ClassIcon]

How would I prevent this warning? This warning appears for every ImageLabel that has its Image property set to rbxasset://textures/ClassImages.png and its ImageRectSize set to 16, 16.