Visual bug where the marketplace attempts to load display names but fails, falling back to the default name. I stumbled into this by clicking the popup in the Minecraft Launcher, which then takes me to the preview edition of Bedrock. I then close the preview edition and launch the main edition of the game. I was logged out, so logged back in. I click on the Marketplace and everything was, to put it simply, scuffed. Relaunching seems to fix the bug.