section view update problem

hello all,

i created this drawing recently, and had to change handrail height. On section AA the sizes have updated correctly. On section BB the sizes havnt changed, although it is a section of AA. Any ideas?

I can create a new section view and it works fine, the reason i dont want to do this is because of detail view c, which is a highly detailed view, which i dont want to do again.

SolidworksDrawings And Detailing