Single doctype with same two child table

Hii everyone,
I created one doctype called doctype A it has same two child table

After that in Doctype A from I filled each table fields and while saving each values in table is disappearing

Before saving

After Saving Table values disappears

Hi there,

What do you mean by “same two child table”? I see only one child table in the images you have linked.

I don’t really understand what is going on here. Are you meaning to have both “Specification” and “Specification - 1”? Can you show your doctype definition and provide a more thorough explanation?

I have added here 3 same child table in doctype

I filled each fields with some values in the form and while saving its disappearing the values

when i try with one child table its working

Ah, I see. I don’t think it’s possible to have the same child doctype in a form more than once.