Minecraft realms failed to upload

Hello everyone. I’ve been trying to upload my last three worlds from Bedrock/Preview on my PlayStation 5 to Realms, but I keep running into issues.
I’ve already reached out to Minecraft Support, signed out of my Microsoft account, restarted the game, and tried other basic troubleshooting steps, but nothing has helped.
The uploads either finish and then say “Failed to replace world,” or I get other Realm-related errors. This has only been happening on PlayStation. I haven’t had the same issue on Xbox.
The world sizes are:
453.3 MB (Bedrock)
350 MB (Preview)
440 MB (Preview)
Has anyone else experienced this or found a workaround? Any advice would be greatly appreciated.