ya,I use BTC buy 300keys,and now I see many keys untradeble.So dunno why.
I withdrow 91 keys,and I see the last 209keys was transparent(Is this word?My english not very good...)
and can't click,but still right there.So wanna know why.
very hurry to use those keys,becuse need trade some item.

It will take time to move because the keys come from different sellers and different bots.