The game crashes when trying to download the realm world

Nintendo Switch's Japanese version of Minecraft crashes when trying to download the realm world.  v1.14.0

What I expected to happen was...:
I wanted to download the world from Realms and make a backup.

What actually happened was...:
The game crashes while importing a level and the world cannot be downloaded.

A small world will download successfully, but will crash if you try to download a 300MB world.

Steps to Reproduce:
1.Start downloading the world from Edit Realm> Game or Backup at Minecraft on Nintendo Switch.
2. Download progress will reach MAX, and World and level import will begin.
3. The software has exited due to an error.
　Is displayed and the game crashes.