XP Bar Stopped Working (PC)

For some reason, the XP bar on my screen is frozen/bugged. I've tried to repair/verify the game on Steam, log into the PoE client, and restart my PC and none of them have resolved the issue. The XP bar (at least visually) is just stuck and shows 0% even though I'm about 40 million away from the next level.

The only two things that I've done today that I haven't before is trade with someone (1 Exalt for a wand) and I started designing my hideout. Other than that, nothing else that I've done today is unusual.

This is pretty game-breaking. There's not much incentive to keep playing if I'm not going to be rewarded for it.

Same error here