User can't switch places of two grid fields
Steps to reproduce
- Go to Content & Data > Forms
- Add a Grid field and name ir Grid 1
- Add another grid field and name it Grid 2
- Try to switch places of Grid 1 and Grid 2
User can't move the Grid 2 to the position where Grid 1 is
User should be able to move Grid 2 up, and move Grid 1 down.