Cesium actual combat - Problem with loading water micro-map download resources - There are blue circles at the north and south poles of the earth, and holes at the north and south poles

In a certain project, the customer mentioned a problem, that is, there will be a blue hole at the north and south poles of the earth. After repeated occurrences, this problem did exist. See below.

After troubleshooting, the problem was finally solved and recorded here.

This article includes error demonstrations, troubleshooting procedures, problem solving, complete code, and online examples.

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error display

Here is the South Pole of a normal three-dimensional Earth:

Here is the South Pole of the Earth in question in three dimensions:

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Troubleshooting process

1. At first I thought it was a code problem

The project uses a certain Cesiumsecondary development platform&#x