Why dataset can't load alpha168/360 data since 2020-09-26?

[winglight]

🐛 Bug Description

To Reproduce

Steps to reproduce the behavior:

1. dump_bin latest daily trading data(cn)
2. test loading data by D, here's code:

fields = ['$adjClose', '$open', '$high', '$low', '$close', '$volume', 'Ref($close, 1)', 'Mean($close, 3)', '$high-$low']
D.features(['SH000300'], fields, start_time='2000-01-01', end_time='2022-12-31', freq='day').tail(300)

output:

That should say qlib can get the latest data, but here's dataset loading result:

import qlib
from qlib.contrib.data.handler import Alpha158

data_handler_config = {
    "start_time": "2008-01-01",
    "end_time": "2023-08-01",
    "fit_start_time": "2008-01-01",
    "fit_end_time": "2014-12-31",
    "instruments": "csi300",
}

if __name__ == "__main__":
    qlib.init()
    h = Alpha158(**data_handler_config)

    # get all the columns of the data
    print(h.get_cols())

    # fetch all the labels
    print(h.fetch(col_set="label"))

    # fetch all the features
    print(h.fetch(col_set="feature"))

Expected Behavior

Dataset load data just like D did.

Screenshot

Environment

Note: User could run cd scripts && python collect_info.py all under project directory to get system information
and paste them here directly.

• Qlib version: 0.8.6
• Python version: 3.7/3.8
• OS (Windows, Linux, MacOS): Linux
• Commit number (optional, please provide it if you are using the dev version):

Additional Notes

[winglight]

system information:
Linux
x86_64
Linux-5.4.188+-x86_64-with-Ubuntu-18.04-bionic
#1 SMP Sun Apr 24 10:03:06 PDT 2022

Python version: 3.7.13 (default, Apr 24 2022, 01:04:09) [GCC 7.5.0]

Qlib version: 0.8.5.99
numpy==1.21.6
pandas==1.3.5
scipy==1.4.1
requests==2.23.0
sacred==0.8.2
python-socketio==5.7.0
redis==4.3.4
python-redis-lock==3.7.0
schedule==1.1.0
cvxpy==1.0.31
hyperopt==0.1.2
fire==0.4.0
statsmodels==0.10.2
xlrd==1.1.0
plotly==5.5.0
matplotlib==3.5.2
tables==3.7.0
pyyaml==5.4.1
mlflow==1.27.0
tqdm==4.64.0
loguru==0.6.0
lightgbm==3.3.2
tornado==5.1.1
joblib==1.1.0
fire==0.4.0
ruamel.yaml==0.17.21

[winglight]

I found it caused by csi300 problem.