Why can I no longer move apps to my SD card?

[AC Question]

Hi all,
I have a Moto E 2nd Generation running on the latest version of android. Since it came with just 8gb of storage, I bought a 64gb Sandisk micro SD card and until recently used it to store apps by going to settings>apps>[app]>move to SD card. Now, for some reason, the 'move to sd card' button is just gone - it is no longer there despite a functioning SD card - this is really frustrating, as apps taking up a lot of space is part of the reason I bought the SD card so I don't want it to go to waste. Any help would be greatly appreciated. Thanks.

 

[B. Diddy]

Welcome to Android Central! Is the phone on Marshmallow, and if so, did you format the card to act as Internal Storage (i.e., adoptable storage)?

 

[Jacob Malone]

thanks for the reply, yes the phone is on marshmallow and I attempted to format the card as internal at first, but it got stuck at 30% so I had to pull it out and instead use it like a normal SD card.

 

[B. Diddy]

Did you re-format the card again after the failed Adoptable Storage format? Or try a completely different card?