64gb micro SD support

Hey, love the fair phone project but have an issue…it says on the home page that it can support a 64gb SD card… I’ve been using a 32gb card since I got the phone in November and it’s been fine…I tried to insert a 64gb card today but it rejected it…it says I should try to format it but this will erase all the data I put on it…can they support this volume of memory? Thanks.

Hi read on here please: