Automation override without incoming MIDI

[veezay]

I'm experiencing a bug with D16 Group's Drumazon VST that only recently started happening.

I have automated the bass drum decay, and randomly (sometimes several times a minute) the automation gets overridden. It happens eventhough Drumazon doesn't have MIDI focus, and also even when I disconnect the MIDI cable from my interface. There are no other controllers connected. I have nothing selected as inputs in the Sync tab in Preferences.

I'm running Reason 12.5.1d41 on Windows 10.