HeliSignals

When the RetireHeli timer executes with a delay, the helicopter entity has already been removed, resulting in a null reference when calling GetComponent to retrieve its component. Additionally, numerous logs showing "Failed to create agent because it is not close enough to the NavMesh" indicate that the helicopter likely malfunctions while at the map edge or in an area not covered by the NavMesh.

Hi, yes the first issue is already resolved and will be fixed in the next update. The warning message is harmless and can be ignored.

The second issue "Failed to create agent because it is not close enough to the NavMesh" is not related to HeliSignals or the Patrol Helicopter at all, it is related to a walking NPC, most probably a scientist. This error is common where there are custom monuments with NavMesh errors or missing NavMesh. Especially is you use BotReSpawn where it can spawn and allow NPC to move where they wouldn't normally.