I had to recently change my SD card due to issues to a 64 gig SanDisk MicroSCXC card
All recoveries work fine. CWM, Phil etc but for some reason TWRP wont allow saving backup to external
it gives error
E: Unable to create folder: /external_sd/TWRP/
failed to make backup folder
I formatted the card to exFat and Fat32 and in both cases same thing
Recovery can read the SD with no issues
Any ideas at this point?