So I've been using homebrew with exfat on a 256gb Samsung evo card for a month now with not a single problem. Yesterday I put the newest version of ftpd on the card because I became tired of pulling it out of the switch every time I need to transfer files. Today I already have corrupted sectors and files on the card from transferring files over my lan with ftpd. This same problem may have occurred with fat32, I don't really know. I won't be using ftpd anymore for the foreseeable future. This is just a heads up to folks that mess around with the same configuration.