Realm rewinds randomly

Progress on the realm either gets rewinded, or it was not saved at all. This only happened after the new 1.13 update happened. It is a terrible waste of time as hours of progress are lost. I have been trapped in a loop, where I keep spawning in a fixed location and even though I move somewhere else, leave the realm and save my progress, the progress does not save. This not only affects me but also other players on the realm who use a mix of Android or iOS. Please resolve this issue as soon as possible. Thank you very much!