From GameWatcher: “Mordhau is the newest first-person medieval melee combat game, taking tips from the likes of Chivalry, and it’s been doing very, very well from the very start. In fact, the game has been getting so much attention that the servers are barely holding up, leading to XP not saving.
If you, too, are having trouble with the issue of not getting XP and gold in Mordhau, then you’re going to be interested in hearing what the developers themselves have to say on the matter!”
Source: N4G PC Mordhau Not Getting XP – Why am I Not Getting XP and Gold?