Bandana out of dress code???

Hey yall! So I recently transferred to a new store after being at my last store for a year. Within the entire time I worked at my last store, I’ve always worn crochet bandanas instead of hats/visors and never had any issues. In fact, majority of baristas and SSV’s at that store wore bandanas!! However, I came in to a shift at this new store (after already having worn the bandana and the same SSV even complimented it previously) now saying that it’s out of dress code and proceeded to toss a hat at me. In the dress code it says nothing about bandanas so I was definitely shocked.

I read some posts saying that it was in a weekly update somewhere but have yet to see that myself.

So does anyone know if it is actually out of dress code and if it is, where the source stating that would be?