I’m using a BPA to update the value in this field:

The update is succesfully made in the database:

But the page does not reflect the change:

Is this a limitation of this particular assistant window?
The page is Inventory Parts In Stock - select a row - Handling Unit - Attach to Handling Unit
The virtuals are
INVENTORY_PART_IN_STOCK_HANDLING_ATTACH_PARTS_TO_HANDLING_UNIT_VIRTUAL_VRT
and
INVENTORY_PART_IN_STOCK_HANDLING_PART_IN_STOCK_TO_ATTACH_HU_VIRTUAL_VRT