My animation only plays on loop

Hey everyone,

Basically i am doing some simple animations on Maya (no bones) and importing the maya file into Unity and using Vuforia por some AR.

Everything great so far, the animation plays fine, etc. But, when i hit Play, nothing happens unless "play on loop" is checked. If not, just show me some still objects and i dont know why.
I dont know if i have to write some code or what, because i saw people doing the exact same thing with no problems.


Anything can help, thanks!