After not using Music Maker for a while because of all sorts of trouble, I was curious whether i'd be happier using the newest version of musicmaker. So i updated, and indeed this seems to work quite a bit better!
Now there's only still a few snags:
1) noisy / distorted reverbs in revolta
2) vertical zooming of tracks (all to default) is being undone when scrolling up or down
3) new: error-message as inserted as image above. it occurs with inserting any e-fx plugin, or loading a track with essenital plugins like the chorus-flanger already on track(s).
Especially the last one is the one i could really use some help with!