c2w incorrect for test images in instant-ngp-data data parser?

[hoanhle]

Describe the bug When running

ns-train nerfacto --output-dir /home/leh19/workspace/experiment/outputs/base_line --vis viewer+tensorboard  --experiment-name painting_1 --pipeline.model.background_color "random" instant-ngp-data --data /home/leh19/test_run_1/JPG/painting_1/processed 

I got the shape mismatching issue.

   assert c2w.shape == num_rays_shape + (3, 4), f"Shape mismatch: {c2w.shape} != {num_rays_shape + (3, 4)}"
AssertionError: Shape mismatch: torch.Size([4096, 4, 3]) != torch.Size([4096, 3, 4])

And this issue only happens when running with instant-ngp-data data-parser. Using nerfstudio-data data-parser was okay.

Data to reproduce: https://drive.google.com/drive/folders/1LlWcbTCr2EO9g-VhNowhW1IRiMHbLzgZ?usp=drive_link