Avatars not updating in some areas and mods

[PGAmerica]

Hi, I was wondering if anyone could help with an avatar display problem. We mostly use the living avatar system on our forum, but whether members use that or another avatar for some reason any members who had joined before last July are stuck with the avatar they had then on a number of areas and mods including the mini statistics, friends lists and visitor message areas. Yet in the posts themselves the current avatars are displayed. Does anyone know why we would still be seeing the old avatars in some areas even though some have been changed multiple times since then?

thanks for any help