Fast Artillery display bug?

[Companion]

I the problem also occured with off-board arties too.

The target zone was definitely within range (about 4km from the edge of the map) and I can always see the first barrage falling. But randomly after 2~3 volleys the explosion effect just would not show even the screen shifted to the target zone.

I checked to see if the guns were out of contact or disabled but they were fully functional