So, after those of us were gifted Promos on New Years by L, I immediately went into the character edit on the site, applied the promo (23-24) and called it a day.
Two days later, I logged back in and was greeted with a 'You have a promo!', not thinking anything of it, I went in to apply the promo, only to have it tell me that San was promo'ing from 23 to 24, and that the stats had been reset (i'd originally put most of the points into Int with the remaining 2 into Res).
It might be a nothingburger, but I figured i'd mention it in case it's the start of something problematic, if people's levels/info are getting rolled back and the like.