Bug with plague

The Ice Plague:The next card you play costs 1 more. I’m playing a more expensive mech and the cards in my hand are still worth 1 more.
https://drive.google.com/file/d/11bBOWgwuVi8WM933sYX6fxtCZmLC6bfd/view?usp=drivesdk
https://drive.google.com/file/d/11YaNjgCxT0ckPcyHBNJRJqfwS2nQ_Rf0/view?usp=sharing
https://drive.google.com/file/d/11aH4-fnjW18UD4hw6hSCZRZBHAKEQLgG/view?usp=sharing
discovery magic cost 0 if anything

Are you sure there was not an ennemy minions whose battlecry increased the cost of your cards for 1 turn ?

There was nothing like that.I even have photos, but I do not know how to send them here.They would have shown a lot.

How to share links to screenshots, videos, and replays