Honeywell have had a spate of EGPWS database issues recently and they are usually known or discovered quickly. The recent rwy expansion ot ORD is an example. The database wasn't revised to include the the extension so we get EGPWS warnings on approach (RWY 10 I think) There have been 3 or 4 fields on the US east coast as well.
Until the database from honeywell is updated, we typically purt a crew alert on the destination to inform the crew and direct the crew to turn the EGPWS (TERR on A320) OFF on approach to avoid the nuisance alerts.