Problems with environmental Script

This script is giving me nothing but headaches. Initially it worked fine. The next time I logged on, I was getting this "sssh" sound over and over rather than the proper water flowing sound I had put in there.

I found an llstopsound stuck somewhere in the night sounds, removed it and all is good.

everything worked fine for days
now all of a sudden its acting up again. The water is half flowing, half giving me this short "Ssh" sound which is it try to start and failing I'm assuming.

nothing has been changed on the script since it last worked:

list daySounds = ["American Oriole", "Robin", "Song Sparrow", "Tree Swallow", "Locust"];
list nightSounds = ["Great Horned Owl"];

list nightAmbient = ["Cricket", "cricket-2"];

list water = ["water-flowing1a"];

default {
    state_entry() {
        llStopSound();
        llSetTimerEvent(2.0);
    }

    timer() {
        vector time = llGetSunDirection();
        list myList;
        float density = 0.9;
        
        llLoopSound(llList2String(water, 0), 0.2);
        
        if (time.z > 0.0) {
            myList = llListRandomize(daySounds, 1);
        } else {
            myList = llListRandomize(nightSounds, 1);
            density = 0.98;
            
            // Ambient nighttime sound
            if (llFrand(1.0) > 0.85) {
                
            } else {
                llLoopSound(llList2String(nightAmbient, 0), 0.25);
            }
        }
        
        if (llFrand(1.0) > density) {
            llTriggerSound(llList2String(myList, 0), 0.25);
        }
    }
}