can i use Animated GIF Image in Storyline ???

Hello Xavier and welcome to E-Learning Heroes :)

Thanks for reaching out and letting us know what you are experiencing with your gif.

I was able to identify an issue we have reported surrounding high-resolution gifs. A workaround listed is to reduce the resolution or quality of the gif, and I've also seen reducing the size to be a solution for some customers. Hopefully one of those will be able to help you out as well.

I'll attach this conversation to our report.