Found in #887 In `lib_rend/lib_rend.c` function `renderIsmToMasa` the variable ``` float tmpRendBuffer[MAX_NUM_OBJECTS][L_FRAME48k]; ``` is used as the input argument to - `copyBufferTo2dArray` expecting the argument to be `float array[MAX_OUTPUT_CHANNELS][L_FRAME48k]`, and - `accumulate2dArrayToBuffer` expecting the argument to be `float array[MAX_OUTPUT_CHANNELS][L_FRAME48k]`. In both cases, the actual number of channels to process is read from `buffer->config.numChannels` and no over-indexing takes place.