Somehow on a recent update my “archives” folder was un-set (that’s it’s own issue). I didn’t notice that, all I noticed was that the keyboard short cut to archive a message just stopped working.
I am not sure when the change happened but I didn’t really have time to troubleshoot it and my buttons already don’t work so it’s been a few weeks of kind of limping along. And then today I noticed that the archive folder should in the short list up top and isn’t. So I went into my settings and set it and now it works fine.
But it seems like a) the update shouldn’t have swallowed my settings and b) if you type a keyboard shortcut that Mailspring doesn’t know what to do with it should object so you know WHY nothing is happening.