Destroyed Tanks marked as active

Today we destroyed a FNIX Tank, and while for the other player it counted destroyed and he was able to loot it, to me it was still marked as an active threat, 99% health. I wasn’t able to loot it, and shooting it didn’t drop its health (after a magazine of AP assault rifle and an explosive round it was still at 99%).

Attached the map with our location at that time, screenshoots of the Tank as seen from and and from the other player; together with the Tank, we destroyed a level 3 Harvester rival, which I was able to loot.