I pause the sim, and then move a/c 0 and 1 to be flying next to each other. When I resume the sim, a/c 1 immediately jumps out of the screen to the south, near (but I'm not completely sure if exactly to) the position that it was at before pausing the sim.

Is this done on purpose? I would like to pause the sim to move multiple a/c together, and then unpause and have them resume flight from this location.