Hello Jailbreakers! So there are some issues currently going on with Cydia because it's an outdated version that is natively bundled with Yalu102 as of (1/30/2017). This version does not contain support for iOS 10 or 64bit Architecture. So it causes issues like button in Cydia not working right. So I'm here to show you guys how to fix this by updating Cydia!
*This is purely optional and can have risks if your not careful
There is a workaround and a fix, I will be covering them both.
When clicking on buttons in Cydia try to tap and then slightly slide to the left all in the same time it takes you to normally tap on a button. It takes some practice but this can fix that issue.
Okay so now we will be walking you through the process of updating Cydia to the beta version. Please note this is called a beta for a reason.
Step 1: Completely close out Cydia and go to your Home Screen
Step 2: Visit This link and tap on the newest beta of cydia_1.1.28
Step 3: Wait for it to download and open it in Filza (or iFile (Not recommended))
Step 4: Tap on it in your file browser and hit "Install"
Step 5: Close all of your apps and Respring
Step 6: Open Cydia and install any updated packages
Step 7: Respring and open Cydia
Step 8: Verify at the bottom of the main page in Cydia it says "Cydia64_1.1.28~b#"
Step 9: Profit from success and leave a thumbs up on this post to help others!