Fix a bug introduced with a recent commit.

miniaudio.h

@@ -58945,6 +58945,7 @@ static ma_result ma_resource_manager_data_buffer_node_acquire(ma_resource_manage
 
     if (result == MA_ALREADY_EXISTS) {
         nodeAlreadyExists = MA_TRUE;
+        result = MA_SUCCESS;
     } else {
         if (result != MA_SUCCESS) {
             return result;

research/miniaudio_engine.c

@@ -52,7 +52,8 @@ int main(int argc, char** argv)
     //resourceManagerConfig.decodedChannels = 2;
     resourceManagerConfig.decodedSampleRate = 48000;
     //resourceManagerConfig.flags |= MA_RESOURCE_MANAGER_FLAG_NO_THREADING;
-    resourceManagerConfig.jobThreadCount = 1;
+    resourceManagerConfig.jobThreadCount = 16;
+    resourceManagerConfig.jobQueueCapacity = 8;
     result = ma_resource_manager_init(&resourceManagerConfig, &resourceManager);
     if (result != MA_SUCCESS) {
         printf("Failed to initialize resource manager.\n");
@@ -79,7 +80,7 @@ int main(int argc, char** argv)
     loadNotification.cb.onSignal = on_sound_loaded;
     loadNotification.pSound = &sound;
 
-    result = ma_sound_init_from_file(&engine, argv[1], MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_DECODE | MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_ASYNC | MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_STREAM, &group, NULL, &sound);
+    result = ma_sound_init_from_file(&engine, argv[1], MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_DECODE | MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_ASYNC /*| MA_RESOURCE_MANAGER_DATA_SOURCE_FLAG_STREAM*/, &group, NULL, &sound);
     if (result != MA_SUCCESS) {
         printf("Failed to load sound: %s\n", argv[1]);
         ma_engine_uninit(&engine);