My gumball works differently.
When you click on the gumball and move an object, the object jumps to the position where I clicked the gumball’s arrow with the mouse cursor.
If I want to move an object by 1 mm, it first moves 5 mm and then I have to move the object back to 4 mm.
Also, grid-snapping is suddenly no longer available.
I cannot remember at all which setting of the property I changed.
I am using Rhino 7 for Windows.
I took a short video below.