WAS Export function raises: TypeError: 'NoneType' object is not subscriptable

[1core0]

Describe the bug
As the VM export does not display any WAS finding, I used the export function in the WAS API.
The function raises an error stating the object is type of "NoneType" and therefore not subscriptable - even though findings exists on the instance.

To Reproduce

> ptpython
>>> from tenable.io import TenableIO
>>> tvm = TenableIO()
>>> tvm.was.export()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/homebrew/lib/python3.13/site-packages/tenable/io/was/api.py", line 61, in export
    parent_scan_ids_with_finalized_at = [_parent_id_with_finalized_at(sc) for sc in scan_config if sc]
                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^
  File "/opt/homebrew/lib/python3.13/site-packages/tenable/io/was/api.py", line 183, in _parent_id_with_finalized_at
    "parent_scan_id": scan_config["last_scan"]["scan_id"],
                      ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable

Expected behavior
Fetch Web Application Scan results

Screenshots

System Information (please complete the following information):

• OS: MacOS
• 64-bit

Additional context

Name: pyTenable
Version: 1.6.0