When Deanna steps down the ladder from the catwalk during her vision about Utopia Planitia, a panel with selenium cells can be seen in the foreground. During the investigation in the nacelle tube, she indicates one of those panels, saying that she doesn't remember seeing them in her vision, and Data confirms that they had not been installed until two years ago. While Deanna may have overlooked that panel in her vision, Data's statement clearly contradicts the images from eight years earlier and it is unlikely that he would have been wrong about the time of installation.
When Troi looks in the nacelle tube for the first time, after asking Worf to open the tube door, the view just prior to the commercial break shows the nacelle tube with no catwalk or stairs to access it (as the ship was still under construction at Utopia Planetia). The view returning from the commercial break shows the catwalk and stairs have returned, even though Troi is still experiencing her hallucination.
Troi enters a Jefferies tube junction while making her way to the nacelle. The door she enters states that she is on deck 9, yet she climbs up. The nacelle tube would not be located above deck 9.
When Riker and Worf are warned that Kwan might try to commit suicide, they are far enough away to surreptitiously order an emergency beamout without Kwan hearing them, but neither does so.