I was in the mayan dungeon and after my 2nd of 3 runs, i got an error message saying inventory overflow. I assumed it was the shards or runes again (or even talisman as im getting close to full there also), but no. I leave the dungeon to find that my character inventory is full and it has about 20 sacrificial hearts. I certainly wasnt using the BoS while also running a dungeon, so....
and I cant go into the BoS to look and see if I am missing any souls until I sac these hearts.