I've basically got the same problem.

I've written a piece of code that seems to check out ok, but once I try to run it through simulate (NameHere) I get an answer that sadly isn't as exhaustive as I'd might had wished for:

record SimulationResult
    resultFile = "Simulation failed.
Error: Error occured while flattening model NameHere
"
end SimulationResult;

I'm guessing that there isn't much to hope for, else than a better error output in the future?