Link to test case: https://jsfiddle.net/BeerusDev/m1qsvzey/91/
Hello,
In my test case, if you click on "Beerus Dev" you will see there are 3 level 1 elements.
2: (1) High & 1 (2) Normal level 1 rows. From my experience using rowGroup, I know that the (1) High elements/rows should also be group, and they are not. When one is clicked, the other opens as well but they are not grouped?