Sub tables not available for output in server side repeat

Wappler Version : 4.8.1
Operating System : mac
Server Model: node
Database Type: maria
Hosting Type: wappler local

Expected behavior

Sub tables should be available for output when using them within a server side repeat

Actual behavior

Sub tables cannot be selected

How to reproduce

Screen Shot 2022-04-18 at 12.30.52 PM1824×1154 202 KB

Screen Shot 2022-04-18 at 12.31.00 PM2422×628 57.4 KB