Models and tiles flashing when create two viewers

[WShihan]

What happened?

Hello
I want to make some data visualization comparisons, so I created two two viewers then added 3dTile to each. After that, the models in one of the scenes occasionally flash. I don’t know why this is happening.

I created a post on Cesium Forum already, you can back to it through link.

I found some similar issues here, Cesium Flickering OSX and Chrome Beta 69.0.3497.57, #12261, #12231, but still have no idea.

Reproduction steps

1. Run the sandcastle demo .On some machines, it runs properly, while on others, it flashes.

Sandcastle example

https://sandcastle.cesium.com/#c=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

Environment

Browser:Chrome 133.0.6943.98 (64bit)
CesiumJS Version: 1.126
Operating System: Window 11
GPU: NVIDIA T600 Laptop

[lukemckinstry]

I was unable reproduce testing on the following setups

Ubuntu 22.04
Chrome 132.0
GeForce GTX 1650 Mobile / Max-Q

Ubuntu 24.04
chrome 133.0
GeForce RTX 4070 Max-Q / Mobile

[WShihan]

I was unable reproduce testing on the following setups

Ubuntu 22.04 Chrome 132.0 GeForce GTX 1650 Mobile / Max-Q

Ubuntu 24.04 chrome 133.0 GeForce RTX 4070 Max-Q / Mobile

Thanks for your work, @lukemckinstry. I found that the issue only occurs on Lenovo-manufactured laptops running the Windows operating system (I have tested on machines available to me, including a MacBook Pro, a Lenovo ThinkPad P15v, and a Lenovo Y900).

I hope this is useful to you.

[ggetz]

I'm also unable to reproduce the flashes. Though I do see some delay in loading globe imagery in the lefthand viewer. Perhaps related?