Gwent card bug

[OGRExOG]

This is a small bug but im wondering if anyone has had the same issue. So i bought a Northern Kingdoms "Poor Fcking Infantry" card from a merchant becuase i figured why not, but i thought it was a little strange that it didnt say i already own it since i already owned 2. But i just shrugged it off as one of those tiny puny bugs that doesnt hurt game whatsoever. Then i decided to play a hand with the merchant i bought it off of, but when i went to add it to my deck it set it as a seperate card. Meaning it didnt stack with the other 2 stacked cards. Now that has me worried that it might not provide the Tight Bond bonus if i play the new card with one of my other 2. I have yet to encounter this issue but i thought i'd ask around anyways.

[tonypa]

As already answered by BuzzardBee, they do not stack but still work fine and activate Tight Bond when you play the gwent.

And yes, they are still not worth to be in your deck. You should be able to get much better cards just by gathering sellable cards from the Traders and Innkeepers around Velen.

[FurtivePygmy]

1 attack is a joke . Lucky ones got 5 copies of Blue Stripe Commanders and scored 200+ points only with the melee row. I was able to get only 3.

[tonypa]

You don't really need more then 3 Blue Stripes Commandos, I finished Card Collector achievement with 3 of those and 3 Crinfrid Reavers Dragon Hunters, did not lose more then 2-3 games in total and even then it was just really bad luck.

[OGRExOG]

Extremely late to this but thank you all for your intput! ive come to realize most of these things during my time offline but thank you guys for clarifying a few things for me