Repeat children makes content disappear inside a nested row element

[R4v3n]

Wappler Version : 6.8.0 and 7.0.0 Beta
Operating System : Windows10
Server Model: NodeJS
Database Type: MariaDB
Hosting Type: Local Server

Expected behavior

A nested row element set to 'repeat children' should still display the first child of the repeated content.

Actual behavior

It is being displayed as a "row" element without content inside of it.

How to reproduce

You would need to create a container first, then put inside this container a row element and inside of this row a column. After this you would need to put a row into this nested column and another column inside this row.
It would have to look like this:

As soon as you set the repeat1 row to 'repeat children' everything disappears and the row shows as empty, though there is still content inside of it.

[Teodor]

Do you mean it disappears in design view only?
When you convert the element to a repeat children and you don't assign an expression to it or if your expression does not return anything, then it won't show anything as there's nothing to repeat.
Turn the App Connect mode off and you will see the nested elements: