This buff is often gone before even 5 minutes, let alone lucky if it lasts 10 minutes not 60 minutes.
They previously used to last an hour, now they don't even last 5 minutes 99% of the time! It's all the Rank 1-5 potions that don't even last 5 minutes, the timers on the Overlord Dragon Ward's & Dragon Slaying have accurate timers!
You're lucky if you see the buff 5 minutes! This isn't even if you die, and yet they should also persist thru death; cause they are very aggressive on the damage they do.
Seems this maybe was a BUG, seems corrected in today's patch notes:https://www.arcgames.com/en/games/neverwinter/news/detail/11520443-patch-notes:-nw.137.20220522a.16
"Green Dragon’s “Mass Dispel” no longer removes buffs that it shouldn’t, and no longer disrupts bards attempting to play songs."
Hopefully that includes the Dragon Slaying & Protection Potions, since they don't say what buff's it shouldn't is...