Is there exactly a way to stop a playing animation? There’s a message named "play_animation" for the sprites which can let them to start, however I can’t find a message named like, say, "stop_animation"; or another method to reach this goal.
Ah, sorry. I can see now that I misunderstood your question. “go.cancel_animations” would be used if you animated a game object using “go.animate”, but what you’re doing is a flip-book animation.
What I think you want is to do is to send another “play_animation” message and set the animation to just a static image.
If you need the flipbook animation to freeze at the exact image that’s displayed at the moment - I’m gonna let someone else answer that, as that’s not something I’ve tried before.