Comment by jbermudes

One of the more frustrating aspects of some clients like Gajim is that you can be in a multiparty chat, but there's no way to tell why OMEMO isn't working. You're probably missing somebody's keys, but unless you go spelunking through debug logs you're never going to know. And good luck if one of the members of the memberlist rarely signs in, then you'll never get his key thus rendering OMEMO useless!