"Script Debugging" checkbox greyed out when Development Build is checked

Unity 4.6.7p2, iOS platform, in Windows, when I check “Development Build”, “Script Debugging” stays greyed out. This didn’t used to happen…any ideas how we can turn script debugging back on?

The problem is, we’re getting an exception while the game runs, and if Script Debugging is checked when making the build XCode is usually able to tell which line number the exception happened on in the stack trace, but without it, we just get the function name.

I’m also experiencing this on Mac version 4.6.4f1; “script debugging” is greyed out when I check “Development Build”. Very confusing since it was working only a short while ago.

Anybody else get this working? Like grizzlyFists, it’s even greyed out on a Mac. It seems impossible to use Script Debugging on hardware because we can’t check the box (Autoconnect Profiler does work, BTW).

I finally figured this out - Script Debugging is disabled if you are building using IL2CPP. I found this hidden in the release notes for one of the builds. So no 64-bit debugging, I guess, gotta use Mono.