Software: Affinity Photo
I have discovered a bug while in the import window. It appears Affinity Photo does not give the spacebar functionality to the import window but rather 'hijacks/keeps' it as the "temporary move" hotkey.
This means when I preview a file to import using the spacebar functionality, it does indeed show a preview of the file, but straight after returns the functionality back to Affinity Photo, thus you are unable to close the preview window, or go to the next image with the arrow keys.
I've done a little screen capture to show you. Hopefully it makes sense.
I have not yet tested the bug in Affinity Designer.