M4L - Saved Presets/Racks not working?

Sorry if this is an old topic; I haven't been around for a while. The problem I'm having is that all of my presets I was using for M4L devices are no longer saved, and a lot of the parameters are either at their default state or just defaulted to 0. I never used to have this issue, especially not with M4L devices from Ableton. Is this a bug, or did something change? I searched around a bit, but wasn't having much luck.