I have tried the latest 10.3 leak and find that some of my most used apps don't work. I do a lot of sales and the Zara app in particular hasn't worked on any of the leaks. I've tried endlessly to return to the 10.2 OS but have had no luck. Done a factory reset, security wipe, etc. I've even used Darcy's tools and Sachesi to attempt a reload but still getting the 10.3.1 leak as my OS. Someone please save me before I lose customers. Thank you.