why i step by your description and find that in the training program ， got a codebook collapse i didnt change any code and i use sthv2 dataset <img width="832" height="502" alt="Image" src="https://github.com/user-attachments/assets/34a60f17-4f3d-4d1d-8b78-356ab7f0f236" />
why i step by your description and find that in the training program ， got a codebook collapse
i didnt change any code and i use sthv2 dataset