Perhaps related to this already showing as fixed:
Wappler Version : 5.1.1
Operating System : mac
Server Model: node
A sub table should be displayed in selecting Output Fields on Repeat Properties
The table is not shown
How to reproduce
Setup a query that has a join, to a table with a sub-table.
In this case users has notification_settings as a subtable and is selected in the query:
However in trying to select this sub-table for output, it is not shown.