As the title says when using a hairstyle or accessory even tho it says you will be able to select with all characters it doesn't seem to show up when I look for them on other characters.

It's mostly a sloppy translation issue. Ticket-based fashion items only become available on all characters when you use two copies of the ticket.

If you did use two copies of the ticket, then, yeah, that is a bug, so make sure you submit a ticket through the support site.