EDIT/
I added a summary of the bugs in a new post below.
Been working on a grid related to an older job that I'm revisiting.
Basically a ToDo list:
At some stage when I reopened the grid, a Y/N column had jumped to the left of the item field.
I was unable to drag it back and unable to drag item field to the left of it:
But then I noticed the number in the "#" column - turns out that *some* items are showing their ID number in the # Column.
I created a new grid to show the same items, and had the same problem