Silly question but forgive me for asking...Are you sure they're not there?

The reason I ask is this particular merchant, the guy who made it, not who's selling it usually has the pieces load in places akin to the full pre-load so they could well be "Off screen"
Use your Auxilliary camera and zoom out to make sure they're not actually there.

Sorry if you've done this already, but sometimes it's the obvious thing that catches us out, no offence intended..

Injustice will be avenged.
Cofiwch Dryweryn.