When the Orville team returns to the Krill chapel, they are seen by Krill security and fired upon. The Orville team ducks and the camera views the security team from over the altar. No Holy Book is seen. However, later in this scene, the book is back on the altar.
When the Krill shuttle is first seen in the Orville's shuttlebay, Gordon is scanning the shuttle with a device raised over his head. It then cuts to a closer shot and he is suddenly holding the scanner at waist level. When it cuts back to the long shot, he is holding the scanner at waist level but then raises it above his head.
Just before the final act break, the launch bay doors above the neutron weapon are seen opening. A few minutes later, when Captain Haros orders the weapon fired, the bay doors open again.
Gordon sets the light timer on the Krill ship to activate after ten minutes. Since it has been stated that the Krill have never had contact with humans or other Union species the chance that they would use minutes as part of their chronological system is close to impossible. However, it is possible the device used to set the timer was modified by Gordon to Union standard units of time to be more user-friendly to him and Ed.
The glass that Alara hands Bortus to eat is somewhat irregularly shaped and frosted in appearance, in opposition to the fine glass and/or metal cups usually seen on the show. This is because the glass she hands him is made of sugar glass, a type of spun sugar used since the days of old Hollywood to resemble glass while being safe for use in stunts.
The Krill ship is shown flying at high speeds through space, with stars streaking past, yet in the interior shots in Ed and Gordon's quarters, the star field outside the windows remains still.
The blade of the dagger that Captain Haros threatens Gordon with can be seen wobbling, revealing it to be fake.
When Ed and Gordon are attempting to scan the Anhkana, Ed is opens the book and scans each individual page one after another. In 2016 (a year before The Orville aired), a device was created at MIT that could scan books without opening then - at the time up to the first nine pages. By 2418, such technology should be advanced enough to scan an entire book, even one as thick as the Ankhana, without opening it.
When the colony planet of Rana 3 is approached by the Krill destroyer, North America can be seen beneath the cloud cover. Rana 3 is just a model of Earth, with heavy clouds used in an attempt to obscure the land masses.
A Krill destroyer has a crew compliment somewhere between several hundred and over a thousand, plus civilians (as evidenced by the classroom onboard). Yet when the religious service is held, only a dozen or so Krill attend. If religion is as central to their lives as the story suggests, surely they would hold a much larger service.
When Ed opens the Anhkana to begin photographing its pages, he skips a very large section in the front of the book.