Colonists ignore build orders [0.58 - Windows 7 x64]

[shockedder]

Build 0.58.
OS Win 7 64 bit Ultimate.
Problem: Unexpected behavior

Colonists ignore build orders placed.
In some cases a reload of the game fixes things, but not always.

I have a test save ready for experimentation, if needed.

The tests are done mainly with one workshop table, but most recently with two.

What I observed:

-In the medical area, if the scanner and dispenser are built , colonists refuse to build meat trolley / i/v line. This is cleared at reload.
-In the medical area, if the scanner and dispenser , meat trolley , i/v line are built,colonists will not build the body storage unit. This is cleared at reload (after several reloads).
-In the medical / hydroponics / living quarters areas condenser units are not built. This is *not* cleared at reload.

If I may, I'd like to take a look at the code governing the AI. Is that possible ?