I have already submitted a bug report for this in-game but thought I’d share with others in case some of you are having issues.
I had completed these quests yesterday and got my rewards as usual with no issues. Logged back in today after weekly maintenance and picked up the quests as normal. I had killed Dos Ryga and was not getting the credit for completing that part of the quest.
I dropped the quests and picked them up on an alt to try and same thing happened, no kill credit for the quest at all.
I have never had an issue with the account bound quests, especially for pet battles, so not sure what has happened here, but it is since maintenance today that it’s not working.