Johny.: It's not a Gwent bug then, but chat + invite system. :) You received a game invite. We'll check if everything works correctly there.
edit: it turned out to be a issue connected to the promo... Notification counters may have some cache. :) But we'll improve it.
Speaking of bugs i have 2 two news ones (at least i didn't see a comment about them)
1 - you fill the basket with some items & go to the forum
->click on the basket icon , all items are hidden , they reappear if i go in the store section. (seen bug1.jpg)
2 - the button to check xp is totally buggered once logged (it's not if you're not logged , this since yesterday)
-> (seen bug2.jpg)
edit : issue 2 seems fixed.
edit 2 : issue 1 seems fixed too