Why are you using the Group By field in the Text Aggregator?
This is the source of all the issues in your scenario.
Simply leave the field blank, or delete the Text Aggregator module.
For further assistance, please provide your scenario blueprint.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!