If I use the arrow keys to move an object in CorelDraw 2020, the object always disappears and cannot be recovered. Why??

Okay, everyone, this is really frustrating. Whenever I try to move objects using the arrow keys in CorelDraw 2020, the object - whether a graphic or text - always disappears and cannot be recovered. Undo doesn't work. The only way to move an object is by selecting and dragging which is not good for small movements to align objects, for example.

How can I fix this? Thanks!