Since you’ve had no takers I’ll pop up to wildly speculate given the length of 04L, there’s no talk of an actual braking system malfunction and they had two goes at that runway I’d suggest some sort of RAAS (or Airbus equivalent system ) problem giving them maybe a false short runway warning.
That might explain some of the very mild exasperation and mention of talking to maintenance….
Hopefully someone comes along soon with a better idea.