if i set only Avatar Image or Only dob then all other fields in Account Table are reset
they’re not being reset - from the screenshots you shared, the owner is missing hypi{id: "..."} and so it’s created a new object and linked it.
Every level that you include must have hypi.id - you’ve done it for the first 2 levels in the screenshot but then you don’t do it in the owner object or in the names object so this is example is creating a new owner with a new name and replacing the old own with it.