>So if this ever happens, again, I'll just move the project and see if that fixes it. I got bogged down within the debugger trying to get a clue, and that wasn't terribly helpful and this was at the end of a very long session trying to figure out parameterized views for the first time. I'm still not sure how the problem was created in the first place, but I've been had been screwing around with the project's DBC bigtime.

The simple rule is that the variable which is the PV's parameter should be in scope when requery() is called. Therefore, search your code for requery("yourview") and set a breakpoint there. It's going to be harder with framework code, though, since it'll probably be in a generic method named something like Amanager.Zmanager.RequeryAView, and the line would be something like
requery(this.parent.xxxmanager.viewalias)
or something equally indirect and generic.