It shows a warning to delete old backups, but there are no old backup files.
So, the backup issue is clearly software-related — there is a bug in the system.
This is a serious problem.
I kindly request that this be prioritized and fixed in the next version update.
I apologize for the delay. The version release is likely to be next week, as we have encountered some issues during testing that need to be resolved. The new version will mainly support the UREAL air conditioning central control hub, along with optimizations for the temperature sensor and presence sensor features and Matter so on.
Thank you for your patience, and stay tuned for more updates!