Sure Trak - Loosing relationships with Copy/Paste

Each time I try to copy several activities and paste them into the same schedule to effectively create a fragnet, all of the activity relationships are lost.

I suspect there’s a simple toggle somewhere or something simple such as that, but I’ve not found a solution.

This does not happen with this project on two other machines so I’m relatively certain I’ve just turned this item off somehow.

But I really need to know how to turn it back on.

Any suggestions???