Heck, even the physical prop in TPM looked wonky as for some reason they decided to make his dome matte instead of glossy and reflective.
I must’ve noticed that subconsciously in the theater on opening day, but Artoo still looked like Artoo.
It’s CPY having never looked at all like the original Yoda that always stood out to me. The story I heard once about how that puppet was intended merely as a placeholder to be replaced with a cg model in post would kind of explain things. Still, would it really have been so complicated to just get the puppet looking the way it did in Empire?