When you play through Defera Invasion Zone... everything that is done on "ground level" appears to be fine, but once you go up the stairs to the second level... the borg are not right. first you may be attacked by borg you can no see, second... loot can be nearly impossible to pick up as soon as you get close it disappears.....if you walk a short distance away or can walk down one of the ramps back to the lower level, you can see your loot, but never can pick it up. Also.. when the borg die.... they just disappear now.. they dont fall or vaporize.. just fade away as requested here is the game play.
https://youtube.com/watch?v=Hyk1hgjgmmg
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https://www.arcgames.com/en/forums/startrekonline#/discussion/1271843/defeated-enemies-vanishing-instantly