`zoomTo` focus for EntityCollection

Due to proprietary code, we can't share code in any respect, though will try to explain it comprehensively. We are using zoomTo method to focus on the given EntityCollection. We are on an impression that it focuses on the area where most of the Entities are located. Previously it was working fine but, now as our EntityCollection grows, we observe some discrepancies. Now it doesn't focus to the area where most of the entities are located. So, is our thought process on a right track or we are missing something? And please let us know how can we focus on an area where most of the entities are located. We are using Resium to use Cesium in our React app.

Browser: Chrome

Operating System: Windows 10

No source file or test is named. Start by reproducing the EntityCollection zoomTo behavior in a minimal Cesium Sandcastle example, then compare it with the Resium React usage described in the issue. Done means establishing the expected focus behavior and either documenting the correct usage or identifying a reproducible Cesium defect with a focused test target.

Written by the indexing model from the issue text.