Hello, I don't know how it can be.
I used the regular sound distance and still I can't hear it.
Have you checked within the .snt file that looping is enabled?
In the editor, have you looked if "Use Default" or something like that on the "sound" entity is enabled? If it is enabled, try disabling that, then use a distance you prefer. Also check the volume (within the editor and the snt too!)
Are the names correct (maybe try another dripping sound if there is one?)
Some sound files only play once, so you have to use them in a script. To test out if this is one of them, simply place the sound directly at the spawn. You should hear it play once. If you don't hear anything at all, something must be wrong.
Solved it. There is only one waterdrop.