While you indeed delete the unused materials now we have unused textures too.
I list them now: (According to the
Sanity Checker)
FelZombieGreen(NoFlies).mdx - Has 1 unused material and 1 unused texture.
FelZombieGreen(SpikedNoFlies).mdx - Has 1 unused texture.
FelZombieGreen.mdx - Has 1 unused texture.
FelZombie(NoFlies).mdx - Has 1 unused material.
FelZombie(SpikedNoFlies).mdx - Has 1 unused material.
Rest is good.
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It is best that before you update them, that you check them with the
Sanity Test. It helped me too.