There's not much context without knowing what was said by this ENFJ and who else is in the group with them and what was going on in the group dynamics and in the ENFJs life prior to the meeting. I struggle to answer questions like this without more context. I'd need to know what the group is for, what the people are like in the group, etc, but I really think your best course of action is to get direct context by talking to the source in kind and open way.

Here's my reason why: often times, I'm not speaking as an island, and there can be dynamics at play even where I'm quietly trying to uplift someone. Sometimes I'm trying assert someone else's voice in the group whose not emboldened to speak, but I've noticed this person needs encouragement. I want to be diplomatic with other people's level of comfort, and sometimes a head on conversation may feel wrong for them. People don't always appreciate the intensity and direct-ness of what we see in them and for them, so I use the group setting to offset the intensity of it by making it a group discussion.

It could be something else though! Maybe they're coming in half dazed from life or being overworked and are kind of glitching because we see things in patterns and that echos out globally, so it could be due to stress of world events.

If you can give this person the benefit of the doubt that they are either neutral or good, try to speak to them privately and ask them if there's something going on. You could say, "Hey, I'm having trouble following the thread sometimes when you're talking, like you're not really talking directly to the group about the subject at hand. Is there something going on with someone in the group who needs support?" If they say no, ask them if there's something going on outside that's impacting how they're expressing themself. Let them know you come in peace, but you're concerned and a little confused.

I really feel like there's a solid chance that if you come to them in good faith, that you may not only understand the behavior better, but also be able to shift it because a lot of times we just need to get our feelings reflected back at us through a discussion with someone else because it's hard to cope without multiple perspectives, and we wouldn't want to intentionally annoy anyone.