Running on Google Colab and a CKPT bug

[ichxorya]

We've been trying to run this project on Colab for months and for now, we have accepted that we can't use the Python 3.8 example given on this repository. So we decided to reconfigure parts of train_mvs_nerf_pl.py to fit with newer PytorchLightning versions.

However, while not touching any part that explicitly mentioned ckpt, We've encountered a disastrous bug. After training for hours and hours using Colab credits, we wasted them all just to see the project won't use ckpt properly. That means, instead of continuing training from where we left, we start again from epoch 0.

We'd be glad if anybody could help us running this project in Colab and fix the ckpt bug.