I'm just gonna ask you here since you seem to be knowledgable about this. I'm still having problems with my rain model. I imported the modeldata straight from STGEARTH and it still had this glitch, both with and without a custom animation (the animation was just to move the model farther back so I could see it). The glitch is that the rain falls normally for about 2 seconds, then it disappears for the same amount of time. It repeats that process back and forth repeatedly until its time is up.
Now here's the thing, do you think the stage it's on has anything to do with it? I'm adding it to one of Pokemon Stadium 2's transformations, so it disappears after a certain amount of time. I've added snow models to other transformations and they didn't have this issue, just the rain. Since people have used the same rain model on normal stages that don't change, I'm wondering if maybe being on the transformed stage is screwing it up somehow.
Yeah you want to use rain from any other custom stage that uses rain like mine for example because it will not work this is the problem i faced when making stormy destination a long time ago