On the ps4 version of Minecraft bedrock since the vr update has gone live I've had two extended session have a glitch in which the autosave icon doesn't leave the screen. Once I try and save and quit it gets stuck in the saving screen. After waiting like 10 minutes I decide too close the Minecraft application and when I reload my world nothing saved in my last play session. This has happened twice to me while playing in vr. I'm not sure if the vr mode is a factor but it only happened whilst in vr.