Heavy Orbital Bombardment Stops Working After ACU is Transported

[venomdragoon]

If you build the heavy orbital bombardment upgrade on the ACU, and then transport the ACU somewhere it stops working and will not fire missiles.
Deleting the upgrade and rebuilding it makes it functional again.
This does not affect the light orbital bombardment. It continues to function after transporting.

[JJ173-zz]

I also noticed this appear when you off-load the ACU from the transport:

WARNING: Nomads: EnableShield: Shields disabled by capacitor ability on unit ["xnl0001"].!

I don't have the capacitor upgrade.