recently i've discovered that some orders in DB (`sales_flat_order`) have NULL values for all columns except: `entity_id`, `protect_code`, `store_name`, `created_at`, `updated_at` and `total_item_count`.

Those orders can be found via BO in Orders tab after applying `DESC` sorting.

First i thought that it may be connected when customer account is deleted, but it isn't.
Second guess was directed towards multifront architecture... but in this case i don't have idea how it could happen.

Did You encountered such problem in your projects ?

Thanks.