Fortified zone support unit attatchment

[Bob12]

From the manual I was under the impression that a fortified zone could attach up to 3 support units of any type. However in my current game (battleground Italy scenario under .68) on one particular fortified unit I managed to attach 4 units, with the option to attach more. Meanwhile on some of my other fortified units I could only attach 1 support unit. I'm not sure if this is a bug or working as designed?? (to me the behavior seems inconsistent)

Images of unit in question attached (all support units are construction battalions)

[Aufklaerungs]

I don't think the restriction applies for construction units only support units that add cv.

[Joel Billings]

It appears that the game allows any number of construction units (at least more than 3) to be attached to forts but only one non-construction unit (and once a non-construction unit is attached, no other units of any kind can be attached). I don't remember this being an intentional change, but it's been that way at least since 1.01.01 when we made some changes to attachments. It's possible that part of this was intended, although I don't think allowing unlimited construction unit attachments was ever intended. We'll discuss this and likely make a change in a future update. Thanks for the report.

[Bob12]

That makes sense, thanks.