risuai version 166.3.0

While performing "Save Backup Locally", the download stops and the following error occurs.
로컬 백업 저장을 하는 도중 다음과 같은 에러가 나와 다운로드가 중단됩니다.

TypeError: Cannot read properties of null (reading 'byteLength') at LocalWriter.writeBackup (https://risuai.xyz/assets/index-8fcLMGeA.js:2096:1654) at async SaveLocalBackup (https://risuai.xyz/assets/index-8fcLMGeA.js:2368:55195)