Gboard Personal Dictionary not working

I have added a few words to the personal dictionary in Gboard settings and they aren't working. Trying to create shortcuts for things like my email address, but when I type the shortcut into Gboard, nothing happens. I've scoured the web for answers to this and have yet to find a solution. I've tried uninstalling and reinstalling Gboard. I emptied the Gboard cache. I'm currently using a Samsung Galaxy S5 and it's on Android 6.0.1, all software is up-to-date. Nothing helps. How to fix this?