In automation, when doing an export of data into an Excel file that contains pivot slicers, those are being lost once the data has been exported.
The issue doesn't occur with Toad Data Point 3.8.
WORKAROUND
Please install Toad Data Point 3.8 to continue working with pivot slicers.
STATUS
The issue is fixed in version 5.0. The latest version of Toad Data Point can be downloaded here.