Loris applyFilter doesn't seem to work

[A Former User]

Unless I'm not shaping the data object correctly for the filter?

// using time in seconds (default)

// pitch shift works (example from the Loris docs)
var pitchShiftData = [[0.0, 0], [0.2,  0], [0.4,  300], [0.4, -300], [0.6, 0]];
lorisManager.process(file, "shiftPitch", data);

// doesn't work, just mutes the output
var filterData = [[0.0, 0], [0.2,  0], [0.4,  1], [0.4, .5], [0.6, 0]];
lorisManager.process(file, "applyFilter", filterData);

// also doesn't work, same result
var filterData = [[0.0, 0], [0.2,  0], [0.4,  20000], [0.4, 10000], [0.6, 0]];
lorisManager.process(file, "applyFilter", filterData);

Edit - here's the source code for it:

if (command == ProcessIds::applyFilter)
{
	juce::ScopedValueSetter<TimeDomainType> svs(options.currentDomainType, TimeDomainType::Frequency);

	auto env = createEnvelopeFromJSON(data);

	for (auto& l : list) // for each partial
	{
		for (auto& p : *l) // i assume this is the envelope
		{
			for (auto& b : p) // for each breakpoint in the envelope
			{
				auto freq = breakpoint_getFrequency(&b); // "returns the frequency of the specified breakpoint"
				auto gain = linearEnvelope_valueAt(env, freq); // "returns the interpolated value of this linearEnvelope at the specified time"

				gain *= breakpoint_getAmplitude(&b); // "returns the absolute amplitude of the specified breakpoint"

				breakpoint_setAmplitude(&b, gain); // "assigns a new (absolute) amplitude to the specified breakpoint"
			}
		}
	}

	destroyLinearEnvelope(env);
	return true;
}

Shouldn't the linearEnvelope_valueAt function be taking a time value, not a frequency? Or is that being handled by the ScopedValueSetter?