Win7 64 / Radeon HD 6900
Broken: 2.7 19e627c
Short description of error
After a couple of Ping-Pong Cycles, the next Cycle begins reverse. In my Test after 5 Cycles, it makes the Jump. But this does not happen always.
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
Make a simple Keyframe Action, and let it Play as Ping-Pong Action.
(Possibility to attach a .blend would be nice.)