Lua script about StartSound seems not working

I heard I can modify sound easily with this script but when I use it the sound file plays (about 0.5 sec) but stops immediately. I just wanted to add the fan rounding sound near the ventilation and set fade out/in if the player character near the object or not.

I actually tried to put sound into the object and called the action but the sound's volume was same no matter the character near it or not.

I hope this editor can set the object has its own sound (eg. grumbling sound of the cat from a distance or flitting sound of flies near from dead body) so the game engine detects a distance of the sound automatically.

Otherwise I need someone who can fix the issue I mentioned above.

Below thing was the script I used, it should be worked but it didn't.

I just realised I can do it generally with action area.

But the script problem is still problem, I need to fix it.

I think there is a bug with the Lua sound side of things. A few people have already mentioned this issue in other threads over past couple of months or so. I don't remember whether or not any of them found a solution. If not then it's something the devs will need to address.

I see. Still there is no problem as soon as I can use the function with action area.

But later time when I tried to develop the sound system which would be played during 'whole' scene then it would be a problem.

I hope they fix it before I managed to get that level. It's very late part of my game...