Why expo-three only works on Snack, but not on my physical android phone?

I tried an expo-three example on Snack. When I run it on my android phone via Snack, it works perfectly fine. But when I export it and build it locally, the example shows nothing but background. Why?

Here is the Snack I use.

platforms I used are:

  • windows 10 / mac mojave (both gives the same result)
  • android pie
  • expo-three v3.0.0-alpha.5
  • expo v31

left is local android phone, right is Snack:

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