I'm encountering a bug (or perhaps a feature) where, during animation, characters and objects leave 4 ghosts behind them in addition to their current state. These don't appear to be a rendering problem as they appear as solid 3D models appearing on even intervals. This hadn't been happening until a while ago, and I'm not sure what I did (maybe an accidental key command?) to cause it.
This picture is an example of what I'm talking about, from the "take a walk" tutorial, as this serves as the best example.
From what I can tell, it leaves one of these ghosts behind on every keyframe, though I could be wrong.
This problem occurs on all projects with any animation, and is particularly annoying on "can you say that" since his face becomes a mash of lips, eyebrows, etc., and because having 5x as much to render significantly slows down playback unless on the lowest quality. Only the current state appears when rendering, though.
I've had experience with the 3D programs Ray Dream 3D (now extinct) and Cinema 4D (still using). I've used both of these much longer than I have A:M, and believe it or not, I actually think A:M has a steeper learning curve in general. I do, however, prefer the smoother spline-based modelling system of A:M as well as more flexible animation in regards to bones (never could get them to work in Cinema 4D.).
One more thing (rant, rave, super-long post), I've been having some trouble with instability and crashes, particularly when using "undo" when manipulating or deleting points. If I try to undo after deleting a point, often it won't come back at all or will appear in some random place 16 feet below the model, or it might just give me an error and flat-out crash.