Independent of playback or track type (audio track / instrument track), when the plugin is loaded and I close the GUI the plugin with the X-button in the topright the plugin gets suspended after around 2sec if there is silence on the track. note that it doesn’t happen if you close the GUI with the GUI button down on the plugin representation in the effect chain.
So far so good. I guess it is expected that a plugin gets suspended, when there’s no sound. However it doesn’t wake up when the sidechain input has sound again, unless you open the GUI again. It does consistenly wake up when needed if there’s a midi note on event running through the plugin, so my current workaround is to just have one big note going through the entire project:
@clemens: I’m having a hard time to reproduce this. In Bitwig the plugins don’t go to sleep for me, regardless of the suspend setting in the inspector.
Little update: It doesn’t happen in my version of Cubase (Cubase Artist 9.5.3) so apparently it’s not a windows-thing, but more of a bitwig-thing.
(Also: I didn’t even see the suspend-settings in the inspector view of Bitwig, before you told me about them. So even if the bug is not going to be fixed, I think it would be ok to just tell Bitwig users to set it to “Suspend: Never” and call it a day. It works for me at least.)
We also can’t make Plugins in Bitwig go to sleep at all under Linux. So maybe this function is not implemented there. I have inquired with Bitwig about this.