Adding and removing Submixes at runtime, then editing the preset causes the editor to crash.
Tested in 4.22.3 (CL - 7053647), 4.23.1 (CL - 9631420), 4.24 (CL - 1050688), 4.25 (CL - 10069288)
1. Download the attached the project
2. Load NewMap
3. PIE
4. Move in and out of the bounds of the TriggerBox Volume placed in the level
5. Make edits to the NewSoundEffectSubmixPreset
Expected: The changes to the preset would be applied
Result: The editor crashes
LoginId:5964f8f84766f4b976277180442869c1
EpicAccountId:2baa9d521a314b24b2efea04e88261b2
Unhandled exception
UE4Editor_Engine!USoundEffectPreset::RemoveEffectInstance() [d:\build\++ue4\sync\engine\source\runtime\engine\private\soundeffectpreset.cpp:57]
UE4Editor_Engine!USoundEffectPreset::Update() [d:\build\++ue4\sync\engine\source\runtime\engine\private\soundeffectpreset.cpp:37]
UE4Editor_CoreUObject!UObject::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:445]
UE4Editor_PropertyEditor!FPropertyNode::NotifyPostChange() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertynode.cpp:2113]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:570]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:358]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:267]
UE4Editor_PropertyEditor!FPropertyHandleFloat::SetValue() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:3380]
UE4Editor_PropertyEditor!SPropertyEditorNumeric<float>::OnValueChanged() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\userinterface\propertyeditor\spropertyeditornumeric.h:501]
UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyEditorNumeric<float>,0,void __cdecl(float)>::ExecuteIfSafe() [d:\build\++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:355]
UE4Editor_PropertyEditor!SSpinBox<float>::CommitValue() [d:\build\++ue4\sync\engine\source\runtime\slate\public\widgets\input\sspinbox.h:892]
UE4Editor_PropertyEditor!SSpinBox<float>::OnMouseMove() [d:\build\++ue4\sync\engine\source\runtime\slate\public\widgets\input\sspinbox.h:604]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_45b783f9f9043a6bdcdb3ca1dda6b1d6> >() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:271]
UE4Editor_Slate!FSlateApplication::RoutePointerMoveEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5928]
UE4Editor_Slate!FSlateApplication::ProcessMouseMoveEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6422]
UE4Editor_Slate!FSlateApplication::OnRawMouseMove() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6385]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1863]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2292]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:989]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:772]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3882]
UE4Editor!GuardedMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launch.cpp:168]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:275]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\3\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-83371 in the post.