diff --git a/Source/FluidSynthModel.cpp b/Source/FluidSynthModel.cpp
index bab6c34..a64b2df 100644
--- a/Source/FluidSynthModel.cpp
+++ b/Source/FluidSynthModel.cpp
@@ -20,6 +20,10 @@ FluidSynthModel::~FluidSynthModel() {
 }
 
 void FluidSynthModel::initialise() {
+    if (initialised) {
+        delete_fluid_synth(synth);
+        delete_fluid_settings(settings);
+    }
     settings = new_fluid_settings();
     // https://sourceforge.net/p/fluidsynth/wiki/FluidSettings/
     fluid_settings_setstr(settings, "synth.verbose", "yes");
diff --git a/Source/PluginProcessor.cpp b/Source/PluginProcessor.cpp
index 63fe898..5e37aae 100644
--- a/Source/PluginProcessor.cpp
+++ b/Source/PluginProcessor.cpp
@@ -152,6 +152,10 @@ void JuicySFAudioProcessor::processBlock (AudioBuffer<float>& buffer, MidiBuffer
     synth.renderNextBlock (buffer, midiMessages, 0, numSamples);
     fluid_synth_process(fluidSynth, numSamples, 1, nullptr, buffer.getNumChannels(), buffer.getArrayOfWritePointers());
 
+    // (see juce_VST3_Wrapper.cpp for the assertion this would trip otherwise)
+    // we are !JucePlugin_ProducesMidiOutput, so clear remaining MIDI messages from our buffer
+    midiMessages.clear();
+
     // In case we have more outputs than inputs, this code clears any output
     // channels that didn't contain input data, (because these aren't
     // guaranteed to be empty - they may contain garbage).