try to play your animation in a while() loop.

Code:

---

if(key_space == 1)
{
  while(1)
  {
  wait(1);
  soccerplayer.frame += 1;
  
   if(soccerplayer.frame > soccerplayers last frame)
   {
   break;
   }

  }

}

---

I dont know if it helps but your problem sounds strange anyway so give it a try

zwecklos