Some tags dont update when you re-export

i have noticed that when you modify a track that you already have on ur USB or SD some information is not updated.

Eg: if i add a cue point and re-export the track is updated fine, but if i update the name of an album or the Key and export this data is not exported. The only way round this is to physically delete the track from the USB then export the track which is a bit of a pain.

Anyway round this?