So a week before the copper age update, I started a survival would. Everything was going good until the update came out. At first, whenever playing on it, loading new chunks, and adding more data, problems would happen. When I would go and press the save and quit button. I would get stuck on the “Saving would, do not turn off your device” screen. I even waited on there for more than 30 minutes and it still never saved and then I did Alt +F4. A couple days later, I wanted to join the world again. When I went to log on though, it would crash on the loading screen and I even tried loading onto the world several times. I really hope this gets fixed because I really want to play the new update. I can’t even log onto world or servers that I haven't downloaded the pack on them before because it will never finish downloading them even after several tries.
Steps to reproduce:
Create or log onto a single player world before or during the new update. (Note: If your doing it before the update, you will need to switch to the new update after playing on it for a little.
Play on the world for a bit and add data to it that will need to save.
Save and quit the world.
It will likely not save. (At least on windows.)
(Logging onto that world again after the steps may cause the game to freeze or crash like it did to me.)
Please attach the world where this is occurring to this report. If it's too large to attach, you can upload it to a file-sharing site such as OneDrive or Dropbox and then share the link.