2D Redston T-Flip-Flop no longer working in Windows 10 Edition v1.2.1

The attached screenshot shows a compact 2D t flip flop design that worked perfectly prior to the 1.2.1 release, but now no longer works. It now triggers, but won't stay in the on position. This broke several redstone circuits in my build that would be very time consuming to replace due to having to redesign entire (large) circuits because of space constraints. I would appreciate it if you could fix the issue preventing this design from working. Thanks!