Stuck in the middle of friend group drama (25 M/F-40M/F age range)

Posting on throw away account.

I (30 F) and my friend (30 F) who I’ll call B, are kind of in the middle of drama right now with my friends. A few people (32 M and 31 F) who I’ll call T and V have issues with a few of my closer friends ( 27 and 26 F) who I’ll call A and F.

A and F are great, but sometimes immature and don’t have the best etiquette. They’ll show up late to places a lot and don’t always RSVP to things. T and V like to host a lot of events that are all out and super fun. More and more they seem to feel A and F have been taking advantage of them. I don’t think this is their intent but I can see how T and V would feel this way. Me and B have said to T and V that they should try explaining that to A and F because they do take criticism like that well and would listen. T and V are at much different places in their lives than A and F so their schedules are extremely limited and taken up by their families etc. and they feel they don’t have the time to deal with A and F after years of this treatment.

All this is to say, T and V are continuing to host parties and events and excluding A and F and it’s become clear to them now. A complained to B about it recently and she didn’t know what to say because it’s not really our drama. We’ve suggested to A and F to reach out to them without divulging what T and V have said because we don’t want to get too involved. Is there anymore we can do here? I see all sides to this. For context too, A and F are sometimes exclusive and tend to leave people out a lot. For me, I’ve learned long ago to not take things like this so personally anymore and just be myself. Seems like they’re getting a bit of a taste and are reaping what they sow. I do want them to all work it out but I don’t think it’s a good idea to get involved because it’ll quickly turn into he said she said.

TL;DR half of my friends are excluding the other half and I’m in the middle