I have noticed in my past few games after the patch 5.3, that when you kill the shuttle bug and it brings up the ward circle, i shuttle bug will just stand there in the center instead of being dead in the ground with its antennas pointing up.
Same
it's because he's preparing to drop reavers in your mineral line and wants to distract you from it first!
Same here, screenshot:
I have another bug related to the shuttle crab ... When 
uses her Q or her W in human for to proc her passive the crab gets stuck in the same spot and doesn't move
