That's great if it's your function that's the problem. Less so if it's someone else's. And it's not only these kinds of errors that can cause silent failure. I

That's great if it's your function that's the problem. Less so if it's someone else's. And it's not only these kinds of errors that can cause silent failure. I've had it on missing brackets, on missing commas, on failure to include/require the right source file etc, etc. No error message, no warning, no log entry, no nothing. Just silence. And a blank output. Not overly helpful.