This bug report details more than 1 issue and navigating the forums/searching is hell.
Here is the scenario:
In order to gain rewards from your mission system, the gear levels have to be the appropriate numbers. Too high of a gear score lowers the rewards even into the NEGATIVE numbers. I had to create a new character, bank his items then re-log with my best to equip those, to hopefully lower my score so rewards worked.
After I did this, I leveled up a few times and gained Glory/Fate like normal.
Once I hit level 20, my character stopped gaining experience. I would like to assume it's because of the alpha's limitations. I just find it odd that my character screen says I'm level 1 with ZERO experience. Granted, my skills are still in place.
Here is a screencap of the issue: https://imgur.com/a/xlVSY