How were the aliens fed while trapped on the planet? When Alien Strong escapes, how will he survive, unable to eat anything?
The position of the hand in the closeup of the commlock screen doesn't match those shots showing Koenig holding it. (thanks to Jang Kwon)
When the aliens are first seen, we see a group shot and individual close ups. The close ups have different backgrounds to the group shot (they are from later in the episode - for example, the Alien Transport shot shows in him the tree branches).
The aliens are clearly wearing clothes (boots, gloves, sleeves, chickenwire, plus glimpses of pink necks).
An unjacketed Alphan with a red sleeve leaves an obvious footprint. Both Koenig and Maya wear jackets at this point.
As Koenig and Maya swim across the lake, several unusual features are out of focus but just visible on the far bank. Among the items seen are a white post (a sign or life saver), and, marked above, a group of three or four people walking along the bank left to right (unclear in still, but visible in motion), a park bench, and a man in a canoe.
When Koenig talks to the Judges after seeing the dinosaur skeletons, one of the commlock close ups shows a completely different background. (As mentioned before, his hands are in a diiferent position in every shot throughout the episode). Thanks to Thomas.
When Transport jumps down from the tree, he jumps forwards, landing in front of the others. The earlier view from above shows he must have turned round before he jumped. Thanks to Thomas

A park bench is seen on the bank as Alien Strong and Alien Invisible cross the water. On the left, a large black bird can be seen landing on the bank. Thanks to Thomas.
While Maya is a bird, looking for the others, Koenig starts to make the bolas. As she returns, the position of the commlock behind him has changed slightly (the screen no longer points at his head). In forward views of Koenig it has moved back behind the stun gun.
Koenig and Maya hear the sound of Alien Invisible and look down. When they return, the commlock has moved closer to the lance, and the stun gun is pointed in the opposite direction. Thanks to Thomas.
When Alien Invisible first disappears, so does his lance. When Koenig and Maya look down, his lance doesn't disappear (this could be the Judges Of Luton limiting his abilities, as they did with Alien Transport to stop him escaping).
When Alien Invisible creeps up on Koenig and Maya, he pushes apart a bush. The wire is just visible.
When Maya/dog leaps at the boulder held by Alien Invisible, one shot shows a crew member behind the dog, holding a lead. (thanks to James. C)
In Command Center, Koenig's jacket is open in wider shots, but zipped up in his close-ups. The position of the sling over his shoulder varies between shots. He also zips his jacket up for the one shot. (thanks to James. C)
Copyright Martin Willey