Sadako's prestige skin "Ring of Blood" will not show up on the equip screen while equipped. "Ring of Fury" shows by default. The only way to enable it to show up is to unequip Ring of Blood and re-equip it every time you launch DBD or come out of a game. This may also apply to the "Rotten Remains" set weapon as well, but I…
As seen in the picture below, kills via "Inexorable Stare" do not count for Devout Emblem progress, leading to lower ranks than deserved.
By executing a fully Condemned survivor, the tome challenge "Kill 12 Survivors by any means" does not get progress.
