Purchased assets are squares not proper shape (moss)

[barren jackal]

Hello,
I just purchased the following asset (https://www.cgtrader.com/3d-models/plant/other/nature-assets-large-swamp-tree) and as you can see on the screenshot, the moss is all rectangles. Can someone point me in the right direction? I have no idea why this isn't working properly. Thank you.

[midnight nimbus]

Material doesn't have alpha clipping enabled, or transparency
(though you'd prefer opaque alpha clipping over transparency unless you need semitransparency)