Typically for an animated prop you will have two (2) static images (Start & End) an one (1) animated image (Loop).
You use the static Start image to show the prop before the loop starts.
Then you switch to the animated Loop image at the frame needed.
When the loop has completed you then switch the sprite to the static End image.
See my tut on how to use animated props HERE
and you will see what I mean.
See my CTA Tutorials on the YouTube channel CTAStepByStep
Check out EZColors for CTA. The easy way to change Render Styled (RS) colors.