Issues with Totals disappearing when using Group By

Not sure if this is normal or not but I have several columns that I am using the Total (sum) area for on my grid. When I add any fields to the dynamic or static Group By area my totals disappear when I run the grid, whether a group by is selected or not. If I remove the Group By options and re-run the grid the totals come back. Is this a bug or is this supposed to happen? I have older grids that the totals show no matter what. I noticed the fields do not appear in the group by under the totals area either, whereas on my older generated grids they do. Weird.

Running: Scriptcase 9.11.17 / WAMP 3.2.3 / PHP 7.3.21 / MySql 5.7.31 / Windows 11