arteteco there shouldn't be any issues as far as I know, but I haven't tested it since beta.15. I do not have much free time at the moment, so I haven't really invested it in FreeFlarum to be honest. That means that even if there is a bug, we might not be aware of it.
Also keep in mind that if there is a bug in Flarum or an extension, we are in 99 % cases powerless here because we are not affiliated with Flarum or any extension author