problem about refreshGPUDataFromSplatBuffers() and add scenes

[Linkersem]

Hello, in order to solve the problem of black screen when adding scenes, I was reading the code, when adding scenes, I noticed that the refreshGPUDataFromSplatBuffers function would be called, but the parameter sinceLastBuildOnly never seemed to be true, I made it true when I added a new scene, However, this leads to an error when calling the fillSplatDataArrays function,I felt very strange.

TypeError: Cannot read properties of undefined (reading 'splatCountOffset')

And after adding it, I get the buildResults variable and start sorting, but I don't know what happened after sorting, how do I make sense of it here?