For some reason, when I make drawings, there is a certain point in my map where they are not "grabbable". If I make an image large enough to cross this invisible "threshold", then the cursor will change at that point on the map, and the drawing is movable if I grab it at one point, but the cursor changes to "immovable" past the line. I tested, and no matter what the map size actually is, the "invisible line" is just past 24 units wide, and just past 14 units high. This is irrespective of feet per unit, and what the grid size is in units. It does not matter what the total page size is, whether it's 25x15, or 100x100. It's simply past 24x14 there is an invisible line where drawings become immovable. They're still modifiable . I can change their shape and size. But I cannot move them. This is on Windows 7, in Firefox 33. [Edit]: Breakthrough. This bug happens in Chrome also, but it is entirely dependent on the size of the browser window I have open. Shrinking the browser window reduces the size of the "movable" area. In both Firefox and Chrome. This happens even when Firefox is started in safe mode, so I'm convinced it is not an add-on. I have not tried this on a different computer yet.