Why does xCode 4.3 syntax highlighting break on some 64-bit projects?

Question

I use XCode on many 64-bit projects, with no problem… But many times, I will find that while a target is set for 64-bit, all-but-most-basic code-completion and syntax highl

Answer 1

I can confirm, after several tests, that goint into Product -> Edit Scheme -> and then Toggle Either / Or Peristent State / Document Versions DOES fix this.