Hi LY_677 - that type of flash would happen if you do not have the objects to process all selected before running the ScaleArray command. Also there must be a point object (Draw curves > More > Point) that was arrayed with all the objects, the point is used for the scale origin point for each group of items.

If you do not have any selection, or did not include a point then you would get the type of result that you describe.

If you're still having problems can you please post the 3DM model file with the objects in it that you're trying to scale?

- Michael