Flamigo Paldea Evolved

I was playing on Live recently, on turn 1, and played Flamigo from Paldea Evolved (the United Wings one). When I activated Insta-Flock, something weird happened. There were three Flamigos in the deck, but for some reason, I couldn't click on them. I clicked on the option to view the other cards in my deck, and I could click them (for obvious reasons, they just acknowledged they were clicked without doing anything else). The Flamigos simply didn't acknowledge that they were clicked, and I couldn't add any of them to hand.

Does anyone have any idea what happened there? I played a few games beforehand, without any issues with this ability, but this was the first time in 6 games that I could add three Flamigo, and before the update, I had no issues with adding three. Has anyone else had this happen to them, or have an idea of what happened here?