Ableton Live VST3 parameter changes slow

[kunz]

It looks like it’s not safe to call setValueNotifyingHost() from a different thread:

Calling setValueNotifyingHost() from processBlock()

Just seen this thread. Should it be ok to call these off a MIDI callback thread. Have the following scenario: In audiopluginhost, moving dials on the GUI correctly updates the parameter. In audiopluginhost, processing MIDI in correctly updates the parameter. In Live, moving dials on the GUI correctly updates the parameter In Live, processing MIDI in sporadically updates the parameter Will moving the calls to setValueNotifyingHost() onto the message thread by one method or another fix this? t…

I also get crashes from time to time. What solutions are possible to avoid blocking the UI thread while loading? Dispatch the calls back to the main thread?