I pretty much had this issue permanently on my old AMD card. Was always amusing seeing literally every other member of my team running around my Trials Roulette as "Nidhogg". It's not just tearing you'll see, NPCs will have completely the wrong names as well. From what I could tell it's some sort of layer bug, incorrectly prioritising what text layer to show. I tried contacting support and their response to me at the time was "we don't officially support AMD cards". (I wish I was joking about that response but I'm not.) In the end I just turned all name plates to "show went selected", that fixed most of the issues.