Delenn's old friend is a poet, and Delenn recognizes a poem she wrote many years ago. At the end of The Gathering (1993), Sinclair quotes the poet Alfred Lord Tennyson - and Delenn does not know what a poet is.
Garibaldi reacts to the Commander's tracking signal being jammed a split second before it actually cuts out.
After Cmdr. Sinclair contacts LCDR Ivonova about the latest attack, the next scene shows Sinclair, but the image is backwards.
When Malcolm Biggs is preparing to leave Ivanova's quarters, the door opens without any interaction, verbal or physical, from Ivanova or Biggs.
When talking to Ambassador Kosh, Commander Sinclair refers to recent attacks on non-humanoids. All the major characters are humanoid, and the attack was on a humanoid (Minbari). What he should have said is non-humans.