As you can see in the attachments (Photos), all the textures were incorrect, such as blocks rendered like "missing texture". Textures in the inventory is correct.
EDIT:
Checked the log and find "Unable to bake model". Don't know what caused this.
Environment
Operating System: Windows 10 (October Update 2018)
Java: Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13).
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However, this issue is a Duplicate of MC-137602.
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