Fixed using wrong memory address for channels > 0.

AdidatCLI/AdidatCLI/NativeWriter.cpp

@@ -78,14 +78,16 @@ void NativeWriter::AddRecord(std::vector<std::vector<float>> data)
 		{
 			chunkSize = OPTIMAL_CHUNK_SIZE;
 		}
+		long samplesAddedInStep = 0;
 		for (size_t channel = 0; channel < data.size(); channel++)
 		{
 			// Write it
 			long writtenSamples = 0;
 			checkResult(ADI_AddChannelSamples(_writerHandle, static_cast<long>(channel), data[channel].data() + samplesAdded, chunkSize, &writtenSamples));
 			// Weird but once the chunk is written to the first channel, all other channels will retunr writtenSamples = 0 :(
-			samplesAdded += writtenSamples;
+			samplesAddedInStep += writtenSamples;
 		}
+		samplesAdded += samplesAddedInStep;
 	}
 
 	// Close the record