Worf tells Captain Picard that sensors pick up two Federation shuttlecraft on the planet's surface. When the away team beams down, the craft they find is a shuttlepod, not a shuttlecraft, and is correctly identified as such afterwards.
Ensign Graham informs Captain Picard that the shuttlecraft (flying between the Enterprise and the planet) is out of transporter range. Yet later, the away team beams to the planet without problems. It is conceivable that at the time the Enterprise was trying to intercept the shuttle, she was still a long way away from it and again much further from the planet, even if the visual of the shuttle on screen suggested otherwise; it probably showed a close-up of the shuttle rather than its true distance. Ensign Graham's statement was therefore correct.
When Nurse Ogawa shines a light on Susanna's skin, the light is orange in the wide shot but green in the closeup. In actuality, the light coming from the hand-held device is warm white/orange in both shots, and that light is causing Susanna's skin to luminesce with the green color. This is why Dr. Crusher says "her skin is simulating the light", and you can see where the green color lags behind the location of the wand as the skin's radiant reaction wears off.
When La Forge is in the holodeck, one of the paused holograms blinks several times.
When Geordi and Susanna are reviewing logs in Engineering, Susanna tells Geordi they have to go back to the planet. Geordi says it's not an option. At this point, a visual effects slate, including a Star Trek: TNG logo, can be briefly seen on Susanna's monitor. The slate was removed in the remastered version.
The "frozen" holographic members of the away team move slightly.
When in Dr. Crusher's office, and later in engineering with Data, the pull of the zipper on the back of La Forge's uniform is visible.
When LaForge goes to the holodeck to review the footage he raises his hand to touch the panel on the wall but he never does, its just a reason for the viewer to see his hand shaking.
When Riker, Worf, and Worf's security team enter the holodeck to look for Geordi, Worf orders his people to search the structure while he searches the perimeter. There is a much easier way to find someone missing inside a holodeck. Telling the computer to "end program" will cause everything NOT created by the holodeck to vanish, leaving the room empty, except for the person you are looking for.
The creatures that the away team transform into aren't visible to the naked eye, due to their light-distorting abilities. However, Geordi has cybernetic implants that he uses to connect his VISOR, which wouldn't disappear and would still be visible, especially since they blink and glow. Yet, he can't be seen by anyone without the UV lights once he begins to transform.
The USS Victory's away team to Tarchannen III was the only away team seen in all of "Star Trek" to have a cameraman. (Of course, this is so Geordi can later find the shadow.)
Also, the cameraman in the away team just stands in place the whole time. His function in the away team could've easily been done by a tripod.
Also, the cameraman in the away team just stands in place the whole time. His function in the away team could've easily been done by a tripod.
Picard, at La Forge's suggestion, would have had the computer monitor La Forge's movements. Either this idea is never carried out or cancelled, but LaForge is able to 'disappear' and leave the ship. The computer should have alerted Picard.
After Geordi has been located on the planet, the crew allow Susanna several minutes to try to talk him down. As time was of the essence, it would have made more sense to simply stun Geordi with a phaser and transport him back to the ship.
Neither Susanna nor Geordi reported that their hands started shaking to Crusher, even though they were well aware something was amiss, still at that point in control of their faculties, and should have reported any irregularities to her. Geordi was even present when it began happening to Susanna and he'd not yet begun to change.
Data informs Riker that his modifications on the emergency beacon will take approximately another two minutes. Yet he completes them after only 40 seconds - for Data a rather huge miscalculation.
Down on the planet, Worf deviates from the show's usual pronunciation of 'kilometer' (with the stress on the 'lo'; kil-AW-mitr), giving instead a rare example of the systematic 'KIL-o-meetr', with the stress on the first syllable. Worf is also inconsistent with his pronunciation, as he twice pronounced it consistent with the rest of the crew when on the ship.