Hi @Abhishek Dewan.
1. I have 1 Vault, 251 items and 7 attachments. And I have 4 naver.com items.
2. I use Google Drive to sync my data.
3. It happens only in Chrome/macOS. I have suffered this problem in 3 macbook pros(2 M1s, 1 M2) so far.
Thank you for your support.