While creating and editing a new dashboard and cards, somehow, I managed to create a dead space that seems to be un-editable. I can't add cards or do anything in this area no matter what I have tried (moving cards to appendix, removing cards things around the area, manipulating size and borders, refreshing, etc.) and was wondering if anyone had this issue before or what you'd recommend for troubleshooting? See the below photo for what I am experiencing or let me know if I can provide further detail. Thanks!