@nickthegreat2468: Go

There are some building actor bugs(specially human buildings) its not a true bug it some settings missing, that cause this, and it is not about timing, you can copy the solution from orc buildings. I dont know what model you using but if copyied from a starcraft building I suggest you to recreat it with warcraft building(this requires warcraft III mod 1.0 that can be downloaded from battlenet). I suggest because the solution that I write works with them, I dont know if it works with starcraft ones, because they use different building settings. So solution example:

Switch to xml view. the xml button is +2 button to right from table view that is default so possibly you are table view in basic.

when you switch you see the xml code that your custom things created. or on empty page if you dont creat nothing. But you at least creat the building you talking about. so switch to xml view and use this codes for your building:

Farm actor (This code is the farm actor full code that different from core, except tha last 4 lines, that 4 line is the bug fix for human or any bugged buildings in warcraft III mod 1.0, so you need to copy those to your building, I copy-d the full code to show you which code you can find in your building. for example the unit icon and life armor icon etc lines are 100% that exist, and any other can exist depend on what you modified on the building.) :

Important!: if you put warcraft III 1.0 to your dependencies it changes the attributes of starcraft for example psionic is gone, descructabla gone, etc, and you get unarmored, tree, summoned etc. If you use it with starcraft staff then you must delete starcraft building settings in actor and then copy the last 4 lines of the code above.

Save document.