YR Gebäude verkaufen Problem

[Kroko]

Immer wenn Yuri Prime dieses Gebäude übernimmt kann er es nicht verkaufen.

[FLAKRE]
UIName=Name:FLAKRE
Name=Flak Drilling
BuildCat=Combat
Strength=900
Armor=steel
TechLevel=4
Prerequisite=REPILE,GACNST
Adjacent=2
Sight=5
Owner=British,French,Germans,Americans,Alliance,Russians,Confederation,Africans,Arabs,Yuri Country
AIBasePlanningSide=0
RequiredHouses=Americans
ForbiddenHouses=British,French,Germans,Alliance
Cost=1100 ; 1000
BaseNormal=no
Points=30
Power=-50
Crewed=no
Primary=3RohrFLak
; LandTargeting=1
; NavalTargeting=6
Capturable=false
Explosion=TWLT070,S_BANG48,S_BRNL58,S_CLSN58,S_TUMU60
DebrisAnims=DBRIS4LG,DBRIS4SM,DBRIS6LG
MaxDebris=3
MinDebris=2
ThreatPosed=0
IsBaseDefense=yes
Powered=yes
ROT=8
Turret=yes
TurretAnim=FLAKRETUR
TurretAnimIsVoxel=true
TurretAnimX=0
TurretAnimY=2
TurretAnimZAdjust=-40
HasStupidGuardMode=false
FireAngle=32
WorkingSound=PowerOn
NotWorkingSound=PowerOff
ImmuneToPsionics=no
Drainable=yes
AntiInfantryValue=0
AntiArmorValue=0
AntiAirValue=25

Woran liegt das?