Progress bar in training

[AzmiHaider92]

Hi,

This is an example of a progress bar training on a dataset with 723 samples and batch size of 16:
Epoch 2: 49%|████▉ | 22/45 [00:26<00:27, 1.18s/it, loss=0.0981, v_num=m49m]

The number 45 is the number of batches in one epoch (723/16=45)

However, sometimes when I run the same code it shows 723 instead of 45.
Why is that? it's the same code with the same resources.

Thanks in advance