I am getting the same problem, two airports I recall is OMDB and EGLL.
The terrain warning kicks off at about 1000ft AGL and accompanies down till I'm about 10ft above the ground. I also have missing callouts like 500, 400 but I do get "2500" and "10" callout. I always have Flaps 30, speedbrakes armed and autobrakes at 3 on both airports. I also have VREF + 5 speed and I normally disengage AP at 1000ft. I will provide a screenshot if I can. I use AIRAC 1501.