It doesn't seem uncommon. People want different things out of transition, it may not always be possible to find a group that fits our own path. It doesn't need to be a bad thing, for me it was so much better when I gave up on being part of the community and started to just be one of the girls. It is much more comfortable. The only sucky part is the in between. When you haven't yet developed the girl feel that it takes to fit into the group, guy groups are not really working for you or them and you don't fit into the community. It does get better, like the rest of transition it usually takes some time. Those groups are really good for some and I think they are great to give people a place they can be themselves. If they aren't for some, well after being out with the girls a few times you will probably never miss those events or groups.
Personally, I love going to Pride. I don't have to belong, just take along a friend that can enjoy it as much as I do. To be honest I love to go to a drag show occasionally and Pride is the biggest around here. I also have been to a few lgbt clubs now and they were fantastic though I have had people say that other clubs were nowhere near as good. Guys aren't hitting on me witch is great and my boyfriend doesn't give me the twenty questions when I get home. Girls are not nearly as bad when it comes to trying to pick you up, not even the more persistent ones. It is so funny having a tiny girl grab my hand and try to coax me onto the dance floor and me a half a foot taller am the girly one! It is almost a shame sometimes about some of the men though, I have never seen a larger collection of gorgeous men in my life. Dance with your friends and maybe some other girls, certainly if you are into girls, I know some of my friends have gone home with other women.
The point is, if it feels helpful or comfortable having those groups can be really good, if not then there are many other options. You don't have to part of anything lgbt at all if you don't want to, there is nothing wrong with that. If you get along with cis women now you will probably get along just as well after.