Version 13, Windows 11.
Call up the dialog. If you move the mouse over the blank area where rows would be displayed the cursor is an arrow. Click on the value field and enter a value, the cursor changes to the bar cursor used in text editing. Press return, the cursor stays the bar cursor. When the mouse is moved over the blank area it's all but invisible, reverting to the std. mouse cursor when it gets out of the blank area.
It's kinda disconcerting to lose it entirely, I keep waggling the mouse around to try and find it. I feel like a bit of a fool :)
This one's more an "I thought you should know"...
Thanks Steve, that's an easy one and we'll fix it in the next Beta. It's good to be rooting these out, we didn't write the grid control ourselves (and I'm beginning to wish we had...)