It seems when checking different Crown Store Dyes in preview, once the Store window is closed, the preview stays on character.
Happened to me today and was confirmed by one guildie.
Only the hat was affected by this effect.
Dye previewed disappeared yet after using wayshrine, but I could pick it again and it's again stucked on hat

.
Edited by Gargath on February 15, 2018 6:48PM PC EU (PL): 14 characters. ESO player since 06.08.2015. Farkas finest quote: "Some people don't think I'm smart. Those people get my fist. But you, I like."