No CCRP vertical line for GBU-12 sometimes - What have I got wrong?

[Jamesp1]

Practising self lasing GBU-12s with the targeting pod on the PG map using the through the inferno user-made mission.

 

 

I set the laser code to 1688, fire the laser at the target.

Have A/G mode set, master arm is on, selected the GBU-12s, fusing mode set to T IN and it all looks good (I get distance and time to target) but no CCRP vertical line.

 

 

Any idea what this means, or what I've likely got wrong? Thanks

[LazyBoot]

Do you use HTS or TDC mode on the pod when slewing to the target?

[Jamesp1]

Do you use HTS or TDC mode on the pod when slewing to the target?

 

 

Thanks - that was probably it. Now I check I have TDC enabled it seems to work!