Bug Report: Background Music Persisting During Rounds in Video Generation

[Bubbl666]

Describe the bug

During video generation, background music (BGM) from the spawn area sometimes persists throughout entire rounds. This issue occurs when:

1. A round ends, and the system temporarily switches back to a previous round before returning to the current round.
2. If the switched-back round had spawn BGM playing (e.g., Ancient T-spawn music, Dust2 T-spawn music, Inferno T-spawn music), the music is more likely to persist even after switching back to the correct round.
3. As a result, the background music continues playing for the entire duration of the round, which is unintended.

Demo links

Any Inferno, Dust2, and Ancient demos, tried with FACEIT demos and HLTV demos.

Steps to reproduce

1. Generate a video on a map with spawn BGM (e.g., Ancient, Inferno, Dust2).
2. Observe rounds where the player’s perspective temporarily switches back to a previous round before switching to the correct one.
3. If the previous round had spawn BGM playing, note that the music sometimes continues throughout the next round.

Expected behavior

Expected Behavior:

1. Background music from the spawn should stop playing when switching back to the correct round.
2. Music should not persist beyond its intended duration.
   Actual Behavior:
   The spawn BGM sometimes remains playing for the entire round after a temporary switch to a previous round.

How often does this bug happen?

None

Log file

No response

Environment information

latest version

Additional context

No response