Resizing artwork in Hatch. Remember Hatch is not a graphics program. While you can resize your image a little, if you have much resizing to do, you should do it in a program before you bring it into Hatch. The reason is, whatever file size you bring in, even if you make it smaller, the actual size of the file is the same. So your computer has to user up resources in the background to keep that image on the screen. Eventually, it will run out of memory.
Make sure you have enough RAM and resources available on your computer.
Don't have a lot of other designs open or other programs open. These all take up resources in your computer that is not available to be used in Hatch.