Not sure if anyone else is having this issue, but the exclamation mark icon for purchasable DLC will not go away after looking at the DLC items.
This is happening in the customization screen, & more specifically on the character screen. This has happened to me before and seems to only be an issue with the last to characters listed on the hero side.
With the notification button always there, I need to check the customization menu every time I want see if I unlocked something through playing the game, or if it’s just a reminder of the DLC characters. Also, it’s an irritating reminder of the hook model.