I'm trying for the 3754254274th time to make a mod for my Star Adairis campaign, and i've run into the most absurd and STUPID problem yet.

So I copied a bunch of Protoss buildings and changed them to make a new race, most of the structures WILL NOT construct, they will be placed down and stuck on 0 progress and (whatever health they started with)

Here's the most annoying part.

The structures that were based on the:
Pylon
Assimilator
Nexus

Work fine, all the others (about 8 or 9)

have the aforementioned issue.

I'll try my best to advise but I haven't run into such a problem before.

Potential problems:
-method of building (Zerg method, Terran method, or Protoss method)?
-Animation (did you change/fiddle with the building animations)?
-Do structures appropriately have Requires Psi (not) checked?

Make sure the building has the "Build in Progress" ability.