[Win10,11]The viewer crashes after pressing on different types of gestures quickly and simultaneously

[vladyslavasproductengine]

Steps to reproduce:

1. Login in the Viewer.
2. Click "Communicate"→"Gestures".
3. Try quickly and simultaneously pressing different types of gestures.

Actual behavior:
Crash the viewer after pressing on different types of gestures quickly and simultaneously.
Expected behavior:
The viewer should not crash.

Additional information:
This issue was found according to the test plan:3.5.11 Gestures and Sounds
https://docs.google.com/document/d/1JtlZkp8l0WZPX8qg6YamSPGHwJMo8iVkM4_nKZqJBwE/edit?pli=1#heading=h.vbuwrsvy6a5c
This issue is reproduced on the current production build Second Life Release-7.1.10.10800445603.
This issue is reproduced only Win10/Win11.

Note:
There is 3 type of crashes in Bugsplat:

https://app.bugsplat.com/v2/keycrash?database=SecondLife_Viewer_2018&stackKeyId=95960
https://app.bugsplat.com/v2/keycrash?database=SecondLife_Viewer_2018&stackKeyId=96128
https://app.bugsplat.com/v2/keycrash?database=SecondLife_Viewer_2018&stackKeyId=96421

Video:

Actualcrash.mp4

Environment

Second Life Release 7.1.11.10945332304 (64bit)
Release Notes

You are at 9.7, 69.0, 21.5 in Product Engine 2 located at simhost-04220be38f2f3414e.agni
SLURL: http://maps.secondlife.com/secondlife/Product%20Engine%202/10/69/21
(global coordinates 336,906.0, 307,269.0, 21.5)
Second Life Server 2024-07-22.10048683488
Release Notes

CPU: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2712 MHz)
Memory: 8067 MB
OS Version: Microsoft Windows 10 64-bit (Build 19045.4894)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce 940MX/PCIe/SSE2

Windows Graphics Driver Version: 25.21.14.1735
OpenGL Version: 4.6.0 NVIDIA 417.35

Window size: 1920x1001
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 96m
Bandwidth: 3000kbit/s
LOD factor: 1.125
Render quality: 1
Texture memory: 2048MB
Disk cache: Max size 1638.4 MB (6.5% used)

J2C Decoder Version: KDU v7.10.4
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.23.1 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.14.0.202408091639
CEF: 118.4.1+g3dd6078+chromium-118.0.5993.54
Chromium: 118.0.5993.54
LibVLC Version: 3.0.21
Voice Server Version: Vivox 4.10.0000.32327.5fc3fe7c.5942f08

Packets Lost: 0/9,302 (0.0%)
September 26 2024 03:41:13

[LLGuru]

• Fixed by #2696 Viewer crashes on gestures : fix the bug #3139