World fails to load when character cosmetics are overloaded.

When using a heavily customized Bedrock character with many animated cosmetic items (clothing, capes, animated accessories, etc.), the game fails to create a new single-player world and gives an error: "Server sent broken packet." This happened across multiple platforms (iOS, Android, and PC).

After removing most of the cosmetics from the character in the Dressing Room (simplifying the outfit), world creation began working again immediately.

It appears the client/server is choking on the amount of cosmetic data being loaded at world startup.

Reproducible on multiple devices using the same Microsoft account with synced custom character.

Suggest Mojang investigates character rendering or data packet handling during single-player world creation and or server joining.