The part below the AGND pin is connected globally to the shielding ground but the bit above it has a high chance of becoming an island with any reasonable manufacturing tolerance. There should be a minimum thickness that the ground planing software uses to make connections.
![image.png](//image.easyeda.com/pullimage/oAdfsDhmGVuUroB6zqKZXYTvkfybhY8oKXe4Vw0L.png)
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