This episode is out-of-sync with the Babylon 5 universe. Mollari and G'Kar left for the Centauri home world in the previous episode "Strange Relations." In the following episode, "A Tragedy of Telepaths," Lockley remarks in her opening mono log "Londo and G'Kar are still on Centauri Prime..." Londo and G'Kar should not have been on Babylon 5 for the day of the dead event.
The second time Morden picks up the newspaper, he holds it straight up. In the next shot, the upper left corner (screen right) of it sags down.
Morden's hairstyle is different from when he was last seen alive. However, there is no rule that says that dead people have to appear exactly as they were at the moment of death (if there was, then Morden should have appeared in more than one piece).
One of Dodger's "Emily Dickinson poems" is actually by 20th-century poet Edna St. Vincent Millay.
When Dodger salutes Captain Lochley, she uses her left hand. On Earth, currently, proper military salutes are always done with the right hand, but it may be different in the 23rd Century.