When an object is created with the in-game tools (shapes, free draw, poly-line), and then the game board is zoomed out (by alt-scroll or dragging the zoom bar) the drawn object cannot be selected or moved normally. This applies across all layers. They can be selected if drag-selecting, but cannot be moved unless more than one object is selected (drawn or sprite based). However, this bug only effects a certain part of the board, an area including the right and bottom sides of the screen. When zooming back in the bug reverts and the further out one is zoomed, the larger the area of the screen which the bug effects. I tested this in two rooms I am gm in and both behave the same way.