Vision PowerTable table edit abnormal

I have a scripting for a vision table to edit the cell, here is the scripting

	id =, 'id')
	query = "UPDATE [dbo].[NTSplice_DATA] SET %s = ? WHERE [id] = ?" % (colName)
	args = [newValue, id]
	system.db.runPrepUpdate(query, args, 'NTSplicingSCADA')
	system.db.refresh(self, "data")

here is the runtime version
In most of my client it works well, when I click the cell, I can change the data just like excel

But one of my computer when I click 1 cell, the data will be cleared as emtpy.
Anyone have these kind of experience?