Disciple Oath, Lights Epiphany, and Judgement are all bugged.
Cross posting this from the main sub for the paladin homies here.
Not even exaggerating. I tested all of them.
Disciple Oath doesn't work after changing instances, specifically it seems pits, towers, undercity, and dungeons.
Lights Epiphany is the same.
Judgement "works" except that it can bug out with a 3-4 second "cooldown" before reapplying on bosses. Sometimes it just stops applying all together and your 40 stacks, which take about 120-160 seconds to build, just fall off completely.
For disciple/Epiphany, changing your oath and then back does fix it. However, you can't do this in Undercity or Towers, so you basically need 2 builds if you want to play anything end game.
You can test it yourself - go stand at a dummy with disciple and /or Lights Epiphany set. See your flaccid wings slap helplessly. Then quickly change your oath back and again. You will immediately realize how broke it is.
So yeah, paladins are a dumpster fire. Thus far haven't heard a word from the devs even acknowledging any of the issues either.