Bug: Looping ambient_generic cannot be stopped and Volume input will not inform the entity

[lunairekitty]

Describe the bug

Any ambient_generic using a looping sound (i.e World.ChamberAlarm) will not stop when recieving the StopSound input, and a workaround of Volume input to 0 doesn't work because it doesn't change the volume if a sound is already playing.

To Reproduce

1. Create a map with an ambient_generic that uses a looping sound
2. Fire StopSound or Volume 0 on it
3. See that nothing happens

Issue Map

Not applicable

Expected Behavior

When I use the StopSound input on a looping ambient_generic it should stop, and Volume 0 should set it's volume to zero.

Operating System

Windows 11 25H2 Microsoft Confidential

[Klunkyone]

Duplicate of this issue (which contains an example map) from July
#1471

Thanks for reporting, this issue needs more attention!