Bing maps aerial broken

CesiumJS
1

Bing maps aerial is intermittently not displaying on:

for instance: Cesium Sandcastle

image
image1535×706 93.8 KB

image
image720×396 95.6 KB

console is reporting:

RuntimeError: An error occurred while accessing https://dev.virtualearth.net/REST/v1/Imagery/Metadata/Aerial?jsonp=loadJsonp200028&incl=ImageryProviders&key=AmXdbd8UeUJtaRSn7yVwyXgQlBBUqliLbHpgn2c76DfuHwAXfRrgS5qwfHU6Rhm8&uriScheme=https
Error
    at new RuntimeError (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:12755:13)
    at metadataFailure3 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190600:11)
    at requestMetadata4 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190613:7)
    at async BingMapsImageryProvider.fromUrl (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190876:5)
    at async IonImageryProvider.fromAssetId (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:206986:25)
    at async handlePromise (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:208065:18)
RuntimeError: An error occurred while accessing https://dev.virtualearth.net/REST/v1/Imagery/Metadata/Aerial?incl=ImageryProviders&key=AmXdbd8UeUJtaRSn7yVwyXgQlBBUqliLbHpgn2c76DfuHwAXfRrgS5qwfHU6Rhm8&uriScheme=https
Error
    at new RuntimeError (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:12755:13)
    at metadataFailure3 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190600:11)
    at requestMetadata4 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190613:7)
    at async BingMapsImageryProvider.fromUrl (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190876:5)
    at async IonImageryProvider.fromAssetId (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:206986:25)
    at async handlePromise (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:208065:18)
RuntimeError: An error occurred while accessing https://dev.virtualearth.net/REST/v1/Imagery/Metadata/AerialWithLabelsOnDemand?jsonp=loadJsonp181533&incl=ImageryProviders&key=AmXdbd8UeUJtaRSn7yVwyXgQlBBUqliLbHpgn2c76DfuHwAXfRrgS5qwfHU6Rhm8&uriScheme=https
Error
    at new RuntimeError (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:12755:13)
    at metadataFailure3 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190600:11)
    at requestMetadata4 (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190613:7)
    at async BingMapsImageryProvider.fromUrl (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:190876:5)
    at async IonImageryProvider.fromAssetId (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:206986:25)
    at async handlePromise (https://sandcastle.cesium.com/CesiumUnminified/Cesium.js:208065:18)

We can switch to arcGIS, but is this symptomatic of some upstream issue?