Data View is no longer returning results

I think it is related to a fix released in Wappler 4.8.2 where there were problems with the usage of the data-view within a repeater and they wanted to use the $index and $value from the repeater in the expression. Probably that fix broke your implementation.

Is it needed to use the groupBy, why not filter directly the array on the ageID and use the groupBy only on the repeater expression.