KML labels disabled when using clustering?

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

**I’m loading some kml and I have many placemarks in the same location. I decided to implement the clustering feature in Cesium, but when I did all of the labels were never shown. Judging from the KML and clustering sandcastle examples, this appears to be a Cesium side-effect of clustering. **

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

Check the sandcastle KML and clustering examples. The clustering application doesn’t show the labels.

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

I need the labels to be visible when the placemarks are visible(cluster pins hidden). Is there a known workaround?

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

**Cesium 1.51, Windows 10, Chrome 70 **

Hey Scott,

I think this is a known bug, which I’ve gone ahead and bumped on GitHub:

If you end up figuring out a way to get it to work it’d definitely be awesome if you can contribute it back to CesiumJS! Otherwise, I wonder if implementing your own version of this with distance display conditions would be simpler. Although that doesn’t take into account distances between the entities.