Producing a ship part for unique ships or Secret Project ships will not increase the counter, whenever an item is produced from the primary production interface.
(not a primary Workshop interface directly, but a shortcut interface)
It will only count and increase a number of produced ship parts, once the production interface is closed.
What should happen?
When a ship part is produced, the number of ship parts should be instantly or simultaneously visible, without exiting the primary production interface first.
(Sorry, Mr. Skula1975, I got too many logs, and now I forgot, which one contains information from a video.)
Video: (Check at 4:54+ to see the issue)