ItemInventory missing custom fields in QuickBooks Desktop

ItemInventory missing custom fields in QuickBooks Desktop

I'm trying to select from ItemInventory with a python script and I'm finding that the table structure is different, when I use the DevArt driver rather than the QODBC driver. Particularly, the custom fields are missing. I'm not seeing any settings in the driver configuration that could cause this, so any guidance you could give would be appreciated.

Thanks.