As per your request, I think I found a bug. It seems that the new version of CSSDM doesn't play nicely with mani. With mani enabled, it will crash every so often. With mani disabled, it's been running smoothly. I have not been able to test which option in mani is exactly the culprit, but something is conflicting. It's on both Linux and Windows. I'm running mani 1.2BetaM. Once I look into it more, I'll post.