Limbolauncher disappears after launching itself to a building

I tried giving a limbolaunching unit such as a terror drone a (fake) C4 weapon so that it will jump into a building and blow it up. But the unit disappeared. The odd thing is, it is virtually still there because I can't build another one (I had BuiltLimit=1 set). Box selecting around the destroyed building didn't work.

Both InfantryTypes and VehicleTypes have this problem and it happens in Vanilla YR.

##### STEPS TO REPRODUCE #####
use this as the terror drone's secondary

[DroneJump2]
Damage=5000
ROF=60
Range=1.83
CellRangefinding=yes
Projectile=JUMP
Speed=30
Warhead=FakeC4WH
LimboLaunch=yes
Report=TerrorDroneAttack
SabotageCursor=yes ;gs instead of normal fire cursor to avoid confusion

##### ADDITIONAL INFORMATION #####
Sure I can just make the unit approach to a building and blow it up instead (like regular C4 weapons), but that would look a bit awkward with Limbolaunching units (For me atleast).