Why is it that MM plugins seems to be primed even after Write to all? This doesn't happen with their Multichannel counterparts. Further explanation follows...
instantiate a MM plugin
auto-enable all parameters
enable latch automation and the "Allow latch prime in stop" pref
select a preset for the plugin - I chose Factory default for all my tests
hit Write to all
The result is that Plugin will still show in bold text in the Automation window, and on the D-Command the plugin insert led and plugin automation button still flashes, but will reset itself when I move the insertion point. Volume, Pan, Send volume, Send pan and Multichannel plugins works fine.
Why is this? It's confusing, especially with a flashing console that behaves like nothing was written.