The app just doesnt work

I dont understand how this drive can struggle so hard to sync. I did manage to sync all my camera roll items in December (after many many attempts, continuations and struggles) it finally transferred all the files at that time. For the last couple months I have tried to continue to sync my camera roll and it never works. If it actually starts, it will sync a few photos and then just stop, or act like I never stated syncing in the first place. This device is now useless to me as I cannot backup my camera roll to it successfully and that was the entire reason I bought it. Im so very disappointed. How could you continue to release updates to an app that fix absolutely nothing?

JJ_Web about SanDisk iXpand™ Sync