I don't know if anyone else is experiencing similar problems.
In Xcode project, I have several groups, and each one is 1 or 2 levels deep.
groupA - fileA.h, fileA.m
groupB - GroupC - fileC.h, fileC.m
(groupC is under GroupB)
I have fileC.h imported in fileA.m. When I edit fileA.m, the autocomplete function stopped working when I try to access those defined in fileC.
When I switch back to Xcode 7.2 the autocomplete works fine.
