Rubberbanding when moving / flying

My daughters and 5 friends (on different computers) all experienced this happen on the same day. When moving, especially flying, there is a glitch where you fly for 3-5 seconds then go back to where you were 3 seconds ago, creating the sensation of deja vu over and over. This repeats continually and doesn't stop. Its on the first world of Realms "coffee". I opened a second world up and this doesnt happen. It would be great if they could play on the first world however because they've put a lot of hours into building it.
Thank you