The problem with the exchange for CD2. Why collapses the table?

Question

1C

There are no errors during the initial loading of the document. But when I try to reload the document, for some reason it merges the columns of the tabular section. The problem is not only in one rule, but in all where there is a tabular part. What is the reason for this and how to solve the problem?

Answer 1

But when I try to reload the document, for some reason it merges the columns of the tabular section

???
those. data is not replaced, but supplemented?

Answer 2

The question is answered. If you don't want to collapse tabular parts by key fields - do a search when loading by row number!