I was tinkering with a build the other day, and swapped out the Quick Access Sling on my Slammer(Adept) only to realize I couldn't put it back on. The option is gone. I checked all the recent patch notes and found nothing on the subject, and the mod in question wasn't removed automatically following any patch, so I assume this change is unintentional. Rough stuff, considering how starved for options Legendary Swords are already.