When you visit the dance page, there's a queue of invites and it'll show you the next one in the queue. So if you've opened a bunch in new tabs for instance, they'll all show the same person. But accepting the dance should show the correct person on the next page (the user reveal) and on the dance floor. Does this help with your issue?

I'm a little confused - when you accept the dances, does the correct person get the steamworks/lounge trinkets? Or does it go to the person they are incorrectly appearing as? Have your friends (who say they requested you) got notifications saying you accepted their dances?

I checked your logs and it looks like one of your friends has invited you to dance multiple times. I think you just need to accept their queued dances, then you should see any other dances you have waiting for you. Have you gone through your entire queue of dance invites yet?

If your friend is trying to invite you, and is unable to, could you have them post on this thread to help us investigate the issue?

Yes, it sounds like that's what happened. In either case, no dances should be missing - you just need to go through the queue to reach them. I'm glad it resolved itself. If you run into any issues with missing dances or anything like that later on, feel free to make another report :)