VS2012 Express/PSSDK Anomaly

Ok, I'm 0-for-5 so far getting questions answered, but hope springs eternal...

Situation is this: an automation plugin, fairly simple, set as 'Persistent', that listens for a particular filter plugin to execute and then does some processing. All of this is in 'Master.cpp'. The processing functions are down at the bottom of Master.cpp, with prototypes up at the top. So far, so good: everything compiles/links clean, start up PS, execute the 'trigger' plugin, the processing churns through, spike the ball, the crowd goes wild. In the course of getting to this point, I've run it under the VS debugger multiple times, using the 'Attach to process...' method, setting breakpoints, single-stepping, all the usual stuff...works good either in or out of the debugger.

At this point it occurs to me that I'll be using those processing functions again in other projects, so I move the prototypes to 'AutoUtil.h', move the functions to 'AutoUtil.cpp', compile/link/execute...and nothing works. The notify hook function (still in Master.cpp) gets started, but never sees the trigger plugin execute. Note that none of the functions that got moved to in AutoUtil.cpp have even been called yet. So I try to debug it...and I can't even hit a breakpoint: the debugger thinks the module hasn't been loaded yet.

Apparently whatever is getting screwed up happens at compile/link time, since the functions that got moved haven't been called. The only thing that's been changed is that a couple of functions moved from one compile unit to another, but for some reason that broke unrelated functionality.

Any thoughts?