Gsplat rendering has holes

[smart4654154]

Thank you for your work. I am using a viewer（ https://github.com/hangg7/nerfview ）
Looking at the PLY data, I found some holes.

Specifically,
My PLY data is generated by 3DGS, https://github.com/graphdeco-inria/gaussian-splatting .
The Nerfview viewer used gsplat to render data and i found some holes.
I guess it may be due to the gsplat algorithm:

1. I used the built-in viewer SIBR in 3DGS to render.Everying is good. My training data is matrix city (big city) https://city-super.github.io/matrixcity/
   

2. I used the CityGS viewer(https://github.com/DekuLiuTesla/CityGaussian) , and it displayed normally.
   Please note that their rendering package is diff-Gaussian-rasterization from 3DGS.
   Then I was using the code of citygs to read PLY data, and rendering the data using the gsplat, but there were still holes, so I guess it may be a problem with gsplatform

could you help me
thank you