Problems with running FAT file system on SST26VF064 via SQI bus in Harmony 3 (ellindsey)

I have a project in which I am using a PIC32MZ2048EFH064, with a SST26VF064 flash memory connected through the SQI bus. I have created a project in Harmony 3, and am using the following modules: SQI1, using Chip Select 1, quad lane mode, clock speed of 15..