Scene pickPosition does not work in 2D regardless if depthTestAgainstTerrain is set.

1. A concise explanation of the problem you’re experiencing.

The scene pickPosition does not seem to work in 2D regardless of how depthTestAgainstTerrain is set.

2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.

https://cesiumjs.org/releases/1.50/Apps/Sandcastle/index.html#c=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

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

Would be nice if there was a common way to pick the location regardless of the scene mode.

4. The Cesium version you’re using, your operating system and browser.

Cesium-1.50, Windows 10

Thanks for reporting this Jerrold.

Looks like there’s already an issue open for this: https://github.com/AnalyticalGraphicsInc/cesium/issues/5076

I’ve gone ahead and bumped it to let them know it’s still broken.