Hi @mrdbourke  remember that ToTensor() normalize the image between 0 and 1 but RandAugment can be applit to a Tensor (that’s what ToTensor() returns) or can be applied to a  PIL Image (that’s what you have after Resize((64, 64)).
I think that you want this:
train_transforms = transforms.Compose([
    transforms.Resize((64, 64)),
    transforms.RandAugment(),
    transforms.ToTensor()
])

Hope it helps.