I see CIs now jitter if they can't get started. That's nice.
Often multivariate scripts won't get started when start values are specified with one value (because matrix is not invertable). I wrote a helper that jiggles starts to avoid this, but it would be nice if mx did this itself, if it can't get started.
This would also take away a lot of frustration from users whose scripts won't run, when the only problem is that the start values are identical across one or more matrices.