Row Grouping showing empty row with Ag-grid

So I’m using React and JS and have ag-grid table with 5 different rows, everything is working good.
But, when I’m try to have row grouping and I add RowGroupModule to my Modules and rowGroup:true and hide:true to any of my rows, it adds new row, but it completely empty (every other row is showing fine), and it doesn’t show any grouping.

Also, on the ag-grid YouTube channel with the grouping tutorial (https://m.youtube.com/watch?v=gzqjP_kF4NI), someone in the comments asked the same question, and ag-grid replied that this is enterprise feature. But I have this enterprise and license key for that, so not sure why this is not working, also I have 23.2.1 version.

Do you guys know what could be the issue? Thank you!