can't change embark ID display name?

Hey, I don't play the game that often and I saw that I needed to change my name from the default. Went on the embark portal and tried changing my display name a bunch of times to a few different variations of the name I normally use, but every time it didn't work and it said "unknown error occured" in the top right. Only other info I found abt this was a youtube comment saying they had the same problem. Anyone have an idea how to fix it?