Loop problem - Sprite animation (4.3)

Hello,

Since 4.3, I'm trying to animate my sprites frame by frame with a 'curve' sprite (animation windows).
The clip is playing well in the Animation windows (looping perfectly), but in the scene, the loop is having a glitch.
I tried with option "Loop Time" and "Loop Pose", but the glitch is still there and the loop is not seamlessly.

The sprite seems to accelerate at the beginning of the loop.

Any idea ?

 

Found my mistake …

The glitch was du to the Transition from "Any State" to "Run" clip.
I removed it, and my clip is now playing correctly ! Sorry for that.
(I spent hours on this …)