Final Fantasy VIII no memory card detected

When I was running pangu jailbreak on ipad air 2 ios 8.1, I was not able to save in-game. Every time I exist the game all the data gets deleted. However there were time when I was able to save. I dont know why. That sometime when i am able to save in-game, a while later it will show up as corrupted data. I tried everything this forum said and nothing worked. I even used the “close content” Then I heard that taiG jailbreak fixes alot of problems. So I restored my ipad, updated to 8.1.1, then jailbroke with taiG. This time I got purchased flex 2 and retroarch to not work. I’m not sure if theyre related but i’ll just put flex 2 aside. Now, whenever I try to save in Final Fantasy VIII, it wont even detect the memory card. I thought retroarch didnt even support .mcr

What shoud I do now? by the way I did put 2 .mcr files into .retroarch

Please Help

Well this is not promising. Have similar issue on odroid c1 save file disappeared after emulator exit.