In order to save any livery specific changes, the Operations Center MUST be run with admin approval in Windows. Failure to do so will not allow FSX to recognize livery specific settings even when the OC records those settings as changed and saved. The reason I couldn't LAND 3 was that FSX was still recognizing every livery but house as Fail Passive, even though OC saved them as Fail Operational.
This is such a simple fix that it should probably be the FIRST thing suggested if this problem is ever brought up again in the Forum. Kudos to Kyle Rodgers for suggesting it.