Hi, I use my own custom dataset to reconstruct Arc de Triomphe and run nerf-w, but the loss is nan <img width="380" alt="image" src="https://github.com/kwea123/nerf_pl/assets/61045930/3b9c8b31-af1b-4560-bc86-33b6816aa87b"> <img width="1302" alt="image" src="https://github.com/kwea123/nerf_pl/assets/61045930/9710ce89-bca2-49c8-a196-c3949578ade8">