Steam issue: Loading loop when purchasing HP.

Dragon_Nexus
Dragon_Nexus Posts: 3,701 Chairperson of the Boards
Kinda wanna have another go at a Gauntlet 10-pack so I was going to buy 2900HP. I've tried three times at different times tonight and each time I'm stuck on the icon cycling load screen that doesn't go away.

I even let it do what it's doing for two hours while playing Civilisation 5 and it wasn't finished when I came back. Is this a known issue?