Full Party objective not working sometimes in Zendikar Expeditions - Depths of Agadeem [Investigat]

Full Party objective not working sometimes in Zendikar Expeditions - Depths of Agadeem
I cast a Harbinger of the Tides (a Merfolk Wizard), and then immediately afterwards cast an Outlaw's Merriment (which creates Cleric, Rogue, and Warrior tokens), and yet I have not completed the Full Party objective.
No game actions happened in between, as you can see from this screenshot: there was no trigger which affected the board and might have killed one of the supports.
(Later in the game I did the same thing, casting an Outlaw's Merriment immediately after a Harbinger, and was credited correctly with the objective)

I cast a Harbinger of the Tides (a Merfolk Wizard), and then immediately afterwards cast an Outlaw's Merriment (which creates Cleric, Rogue, and Warrior tokens), and yet I have not completed the Full Party objective.
No game actions happened in between, as you can see from this screenshot: there was no trigger which affected the board and might have killed one of the supports.
(Later in the game I did the same thing, casting an Outlaw's Merriment immediately after a Harbinger, and was credited correctly with the objective)

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(the HTML height tag is still there now, I checked by editing the post)
Thank you for the feedback, this issue will be investigated!
In order to help us, please provide the following information (you can PM me the answer if you prefer, or send it to Customer Support in-game):
In which level was your Nicol Bolas, God-Pharaoh? At which level was the Scorpion's Sting ability?
Was it in the Black Node?
All cards in the deck and possible interactions that might have happened.
Thank you,
Marcela.