The TaiG team released iOS 8.1.3 Untethered jailbreak on iPhone, iPad and iPod Touch. However, some users are complaining that some of jailbreak tweaks and apps are not working after Jailbreak. The reason that some of jailbreak tweaks are not working is because Cydia Substrate is not compatible with iOS 8.3 – iOS 8.1.3.
List of iOS 8.1.3 – iOS 8.3 Compatible Jailbreak Tweaks on Cydia
Fully compatible Jailbreak tweaks
Light Untrusted Hosts Blocker
Minimal Hosts Blocker
Untrusted Hosts Blocker
Partially compatible Jailbreak tweaks
You can go through the complete list of compatible jailbreak tweaks for iOS 8.3 – iOS 8.1.3 here.