This has only recently been happening, but is very frustrating.
Any instrument I add from Komplete Kontrol doesn't play back when I have saved and reloaded a tune.
As an example, I added a bassline into Ableton from KK using Massive yesterday. Saved the project. When loading the project back up today to work on, the instrument doesn't play.
So frustrating.
Has anyone else experienced this? Sure, I haven't changes a setting, but if any has any ideas please let me know. This happens all the time now, with any instrument.