Why is renoise not showing my AU plugin?

I am creating a new AU instrument plugin. At the moment it’s very basic: no GUI, no presets, no parameters. It just plays a simple sine wave. It works fine in Reaper, and passes all auval tests.

But doesn’t show in Renoise. The renoise log doesn’t show any information about it being rejected; it just doesn’t show up in the dropdown. The “type” is “aumu” (music generator; the same type as most other instrument AUs).

I have attached the plugin to this message, but of course ideally it would be great to understand:

• what are the requirements Renoise imposes on AU plugins to load them as instrument plugins?
• how do I know why a specific plugin was rejected?
• what other tools are available to me to make this process more efficient / useful?

thanks!

had the same problem once, somewhere in the forum here is thread about it. Does your plugin validate with auval?

U forgot the attachment

Remember that after adding the au (while having Renoise opened), you need to restart Renoise. Otherwise the new plugin wont be found. It’s like this since OSX 10.8, I guess because of apple’s crappy coreaudiodaemon which seems to do the scanning.