load_dataset does not load all of the data in my input file
### Describe the bug

I have 127 elements in my input dataset.  When I do a len on the dataset after loaded, it is only 124 elements.

### Steps to reproduce the bug

    train_dataset = nlp.load_dataset(data_args.dataset_path, name=data_args.qg_format, split=nlp.Split.TRAIN)
    valid_dataset = nlp.load_dataset(data_args.dataset_path, name=data_args.qg_format, split=nlp.Split.VALIDATION)
    logger.info(len(train_dataset))
    logger.info(len(valid_dataset))

Both train and valid input are 127 items.  However, they both only load 124 items.  The input format is in json.  At the end of the day, I am trying to create .pt files.  

### Expected behavior

I see all 127 elements in my dataset when performing len

### Environment info

Python 3.10.  CentOS operating system.  nlp==0.40, datasets==2.14.5, transformers==4.26.1