i am using the expand rows by default to expand all rows using a variable
but when changing the value of the variable to true the table rows will expand but only for the groupe by role.
What kind of component are you using for varExpand?
I was able to use a 'Toggle Button' component to get a table that is grouped by a tag ('Customer ID' in my example) and the rows were able to expand and collapse on button click as expected.
It looks like in both your screen shots of your table that nothing changed. Are you double nesting rows?