Mission: Infantry Showcase

When teamleader assignes me a target, the red target Box sometimes does not target any Soldier or maybe its not updated correctly.

Possible Causes:
Maybe because target Soldier ran away and Mission triggers an event (like "village cleared") and target box doesn't update anymore?

Last Mission I ran to the target-box after the Village was cleared and the red box just hang in the sky somewhere inside the village with no enemy Soldier near.