SM-G530P Galaxy Grand Prime micro SD storage dismounts after every power cycle

So I've got my SM-G530P all rooted and everything just so, and it works great, zero issues, except for one thing. Upon cycling the power ( either power off or restart) the phone loses my micro sd card (I've tried 3 different brands...ADATA, PNY, and Sandisk.....all 32gb, all UHS-3). now I can go in and mount it again, and it works fine. it tells me it is damaged, forces format, and then it works perfectly till power cycle. I've tested all the micro sd cards in my PC, and I have tried to see if I could get the same results in my NVidia shield.......and I have not. Two of the sdcards are new, and the other is low mileage. so if it isn't the memory cards, it has to be the phone, right? the cards fit snuggly in the expansion slot, and they all work fine and dandy in any device..........even my grand prime, until I cycle the power on it, upon boot, it does not show the sd card in the storage manager, but when I hit mount, it says it is damaged, and makes me format the card.....and after that, works fine until power cycle.... Any help would be greatly appreciated. If you need more info I will do all I can to provide it. As XDA is really the only place for legit and concise mobile device info, I figured this was the place to turn to.

running android 5.1.1

rooted with TrapKernel AOI1 from shinyside, obtained right here on xda.....and performed with Odin 3.10.7

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