Paweł

Do you host your server through a third-party service? If so, which one are you using? I’m considering switching as well.

Although I managed to reduce the world size and the upload completed successfully, I still can’t join the realm. The world itself is fine, I can play singleplayer.

Yeah, it's a real bummer, it doesn't even let me upload the same world imidiately after downloading it from realms

The problem is still present in the newest release candidate

Im also having the same issue, even uploading the same world after downloading is impossible

I'm having the same problem, optimizing the world, deleting unnecessary chunks, uploading from a different PC doesn't work