I was now able to manually search the xbox store for "wrath of the druids" and then install it. I hope this will be the first and last hiccup with this dlc.

@cavveman same here, different currency.

After the recent update, the missing dialog triggered as I approached the drengr. He then fell off the wall and I could confirm the kill. Yay! I hope it's fixed for everyone else too.

I also have this issue, xbox one. Didn't care about it before, but apparently the new River Raids update includes content that requires completion of this fight.

We just need this fight reset when we switch zones without completing the dialog, as was done for other bugged mysteries/world events. Presumably, killing the enemy far from the ledge would prevent it from happening.

@sockthing you are right. I have 4 unused skill points and something else triggers the reduction from time to time, usually as I gain xp. My guess is that this triggers a refresh of the skill menu which runs the new code and causes the quiver reduction. Just a wild guess. I keep saving and reloading as necessary. It is very very frustrating.

@ubit00n I've been able to reproduce and avoid this bug for now. The bug occurs when the new skill point nodes are triggered at around 278 skill points or so. Just looking into the skill tree when they show up triggers the quiver reduction. As long as I keep my points unspent and do not open the skill menu, the quiver remains at its current capacity.
For those who have the issue, you can try loading an early save from before the new skill nodes appeared for you.