Observer doesn't behave well when we go from 2 to 1 camera

[JornJorn]

While testing a new simulator, I figured that Observer goes funky when a camera (id1) goes missing, while there are still robots present on that camera (id1) which will show up on the other camera(id 0) later.

Some figure to hopefully make the issue more clear;

1. Here, there are 2 camera's and the robot location is as outputted from the simulator
   

2. Here, everything is send from camera id 0, while yellow is on their spot, blue is not
   

3. While not sending any commands, blue slowly starts drifting
   

4. After restarting observer, everything is where it should
   

Attached a small log file. It includes starting the ERforce Simulator with 2 camera's, stopping it, and starting a Simulator with 1 camera.
world_log_19971_11_36_28_716.log