I have a truck-station on a distant outpost, which loads automated vehicles. When I arrived at the outpost and the truck-station came first in to view, it did the loading animation, even though no vehicle was around.
I suspect this has something to do with the station remembering it's last animation while 'inactive'(not in render range) and then performing it once rendered.
This issue migth affect more assets than just the truck station, but wouldn't be as obvious on other machines.
(I'm writing this report several days after the test-weekend, based on my notes & memory)