IPad OS, Join Meetup popup up

On my last two meetups I’ve created 12/22 and yesterday, I have experienced a weird occurrence of after clicking the Ride button to get in game, before my meetup begins, the Join Meetup popup button only shows for about a half a second and then disappears. I have quit the ride, discard it, and try again with my finger poised over where the popup will appear, then hopefully tap it fast enough before it disappears again. If I’m not quick enough on the draw, then I have quit, discard, etc all over again. My wife, sitting next me on her setup with her iPad OS setup doesn’t experience this, her Join Meetup popup button just stays up so she can easily join the meetup. So I’m not sure why this happens to me only as the meetup creator???