Playing a track solo doesn't fully mute other tracks

When a track is set as solo, it doesn’t completely mute other tracks. When you press play, the other tracks will play for a split-second, and then they’ll get properly muted.

This is problematic because it makes solo useless, as playing will play unwanted sounds for a split-second.

To reproduce:

  1. Make two vocal tracks
  2. Assign any two singers (AI or standard, doesn’t matter)
  3. Make a note for singer 1: seconds 1-2
  4. Make a note for singer 2: seconds 2-3
  5. Set singer 1 as solo
  6. Put playhead at time 2.5 seconds
  7. Press play

Expected behavior:
Nothing should be heard, as singer 1 is solo, and they don’t have a note

Actual behavior:
Singer 2 can be heard for a split second.

Also happens with instrumental tracks, but only on the first play after making vocal track solo. Playing for the first time, instrumental can be heard for a split second; on the second play, it’s properly muted from the start.

Synthesizer V Studio Basic 1.2.2
Synthesizer V Engine 2.2.1
© 2020 Dreamtonics Co., Ltd.

== System Info ==
CPU: AuthenticAMD 3560 MHz 6 Cores 12 Threads
CPU Features: SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, FMA3
Memory: 16335 MBytes
Operating System: Windows 10 64 bits
User Language: hr
User Region: HR
Installation Path: C:\Program Files\Synthesizer V Studio Basic\synthv-studio.exe
Application Directory: C:\Users\User\Documents\Dreamtonics\Synthesizer V Studio

== Type Checks ==
sizeof(int) = 4
sizeof(long) = 4
sizeof(void*) = 8

Report generated at 30 Mar 2021 21:39.
Built on Mar 24 2021.
Double click to copy this report.

Fixed in Synthesizer V Studio 1.4.0 :tada:
Thank you!

Bug fixes
Playback: muted tracks are audible during the first few hundred milliseconds of playback.

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