Hand Tool - Space Bar Issue: Definitive Fix?

Is there a definitive fix to the Hand Tool via Spacebar shortcut mysteriously cutting out?

I've poured over many similar threads and can't seem to resolve this issue. Closing all of my browser tabs did not help. I'm not running any Webroot software. I've disabled this shortcut in my Mac's system preferecnces as a way to access siri. Resetting to default preferences has not had an impace.

This is happening in Photoshop and Illustrator. Any help would be greatly appreciated!