diff --git a/plugins/Cardinal/src/HostCV.cpp b/plugins/Cardinal/src/HostCV.cpp
index 7f23b47..1be4141 100644
--- a/plugins/Cardinal/src/HostCV.cpp
+++ b/plugins/Cardinal/src/HostCV.cpp
@@ -87,6 +87,9 @@ struct HostCV : TerminalModule {
         }
         else if (const float* const* const dataIns = pcontext->dataIns)
         {
+            if (dataIns[CARDINAL_AUDIO_IO_OFFSET] == nullptr)
+                return;
+
             float outputOffset;
             outputOffset = params[BIPOLAR_OUTPUTS_1_5].getValue() > 0.1f ? 5.0f : 0.0f;
 
@@ -116,6 +119,9 @@ struct HostCV : TerminalModule {
 
         float** const dataOuts = pcontext->dataOuts;
 
+        if (dataOuts[CARDINAL_AUDIO_IO_OFFSET] == nullptr)
+            return;
+
         float inputOffset;
         inputOffset = params[BIPOLAR_INPUTS_1_5].getValue() > 0.1f ? 5.0f : 0.0f;
 
diff --git a/src/CardinalPlugin.cpp b/src/CardinalPlugin.cpp
index 6767404..b37aac1 100644
--- a/src/CardinalPlugin.cpp
+++ b/src/CardinalPlugin.cpp
@@ -1148,7 +1148,13 @@ protected:
         {
            #if DISTRHO_PLUGIN_NUM_INPUTS != 0
             for (int i=0; i<DISTRHO_PLUGIN_NUM_INPUTS; ++i)
-                std::memcpy(fAudioBufferCopy[i], inputs[i], sizeof(float)*frames);
+            {
+               #if CARDINAL_VARIANT_MAIN
+                // can be null on main variant
+                if (inputs[i] != nullptr)
+               #endif
+                    std::memcpy(fAudioBufferCopy[i], inputs[i], sizeof(float)*frames);
+            }
             context->dataIns = fAudioBufferCopy;
            #else
             context->dataIns = nullptr;
@@ -1157,7 +1163,13 @@ protected:
         }
 
         for (int i=0; i<DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
-            std::memset(outputs[i], 0, sizeof(float)*frames);
+        {
+           #if CARDINAL_VARIANT_MAIN
+            // can be null on main variant
+            if (outputs[i] != nullptr)
+           #endif
+                std::memset(outputs[i], 0, sizeof(float)*frames);
+        }
 
         if (bypassed)
         {