Movable Type 5.2.2 is buggy

I discovered a while back that if I mark various comments as spam directly from the notifications I get and do a whole lot at once, I can end up in a situation where temporary files lock each other out, and if I'm not careful I could lose individual blog pages or even whole month archives unless I carefully republish.  

Tonight I lost my blog's index page completely when my brother was commenting on an entry at the same time I was publishing another entry.  I have such a low-volume site (and humans rarely comment) that it's not usually a problem, but if I was getting a lot of comments I'd be pretty worried about MT just eating my content ..