That's weird. I bought two smiley faced ones in different colors and I had no issue getting them working. The only issue was a design wise but easily resolved by sanding it off. (The card itself was too high after the microsd was inserted to be able to close the port cover)
Why would you need it twice when after you do MLTHaku, it will exit and you will be able to install Henkaku Enso? After Enso is installed, it will already be using the sd2vita soo yeah.
I would like to point out that for those who have a PS Vita 1K with 3.60 and tried to install Henkaku without a memory stick, you will have to restore the PS Vita 1K because you won't be able to have molecule shell to delete the tai folder. The only way to delete it is to restore. Once that's...