Hi, just wanted to post this real quick so you guys can fix this.
This fishing hat is marked as not collected, even tho i did shift+click all the collections as you can see the message in chat.

is cloth xmog

@badbranni As milotic mentioned it is a "Cloth" item despite it being technically a cosmetic. Since you are on a rogue this is why it won't register as collected. Had you gotten it on a Mage, Priest or Warlock then it would. Unfortunately this is how Blizzard does transmog and for some reason they gave that an armor type.

Here you can see it is able to be collected on those classes: