Hi Mantas,
Greetings from Syncfusion support.
Query: Is it possible to group grid while it has freezing columns? I am trying to do it, but no data at all are visible in grid.
By default, the frozen rows and columns are not compatible with Grouping feature. This is the behavior of EJ2 Grid. Find the below documentation which illustrates the limitation of Frozen columns feature in Grid.
Please get back to us if you need further assistance with this.
Regards,
Rajapandiyan S