As saurik has explained in an extended reddit thread, even if TaiG had used a workaround to fix the icons disappearing issue in TaiG 2.1.2, there have been nonetheless a few instances the place customers may just hit the issue.
what TaiG did is to “wrap” my uicache with their very own device that used a unsafe function of Substrate that S don’t reveal as ABI (and consider S designed the TUI for poorly, through the best way) to inject code into installd that turns out to reflect a ton of the appliance scanning good judgment “simply so” so as to make it paintings… however that most effective used to be imaginable if SpringBoard scanned the icons as a result of uicache. If there used to be another explanation why SpringBoard scanned the icons (perhaps due to any person deleting the icon cache) then SpringBoard might lose icons.After freeing a beta model to check the fix, saurik has simply launched UIKit Tools 1.1.0, which now helps iOS 8.3, and in addition fixes the issue with the TaiG jailbreak the place from time to time all of the app icons might disappear.
So in the event you’re dealing with the app icons disappearing issue, or need to steer clear of hitting it someday, then set up the UIKit Tools update from Cydia right away. When you release Cydia or refresh it, you will have to get an “Essential improve” popup. Tap on Complete Upgrade to set up the update.