Dyes are "stuck"
Have you unlocked ‘Stone’ in your Wardrobe? I know it sounds like a silly question, but sometimes players use dyes that came with Outfits or Armor purchased by using the Dropper. The game won’t save any Dye you don’t have unlocked.
Yeah, I sorted all the dyes by set. It seems “Stone” is a starter dye.
After changing it every time I saw those blue boots over the past two days, it seems to have changed permanently after logging in this evening. issue resolved, I guess.