Tradable Cards becoming Untradable

So at the end of November I Packed thunderstruck icon Xavi. This morning I logged on and found that this card is now untradable. No evos applied, I was actually away for Christmas holidays and this happened while I was away. Not sure if anyone else has had this issue, but it’s a bit tapped as this card is 900k coins. I thought I would spend money on this game for once and this happened…

proof of this is actually on my Youtube channel, see screenshots below.