I got on Minecraft today 4/26/2025 to see that all of my minecraft worlds lost their picture and just said “unknown”. I tried syncing the worlds, and we got saved data space error code (pic). I tried 1) hard restarting the console, 2) clearing cache, 3) new mac address, 4) clearing local saved data, and 5) signing in on a different console, and none of the options worked. Now my saves are completely gone. Not a single world would load, not even worlds that were only a few hundred mbs. The worlds existed in the cloud but could not be synced. I am aware this has been an issue since 1.19.
I use bedrock, not preview, and had similar issue. My worlds are gone. They routed me to this thread
MCPE-218647