Crash when interacting with the song editor while automating solos between two mixer channels

[headquarter8302]

System Information

Windows 11 24H2 Build 26100.2033

LMMS Version(s)

1.3.0-alpha.1.768+pr5147.ga94c8f1c0 (win32/x86_64, Qt 5.15.2, MSVC 192930154)

Most Recent Working Version

No response

Bug Summary

When interacting with the song editor window while automating two mixer channels' solo, there's a chance that LMMS can crash.

Expected Behaviour

Not crash

Steps To Reproduce

1. Open the attached project in LMMS
2. Play to the point of the automation, then click repeatedly.
3. Repeat step 2 until the program crashes

Logs

WinDbg crash dump from !analyze -v

*******************************************************************************
*                                                                             *
*                        Exception Analysis                                   *
*                                                                             *
*******************************************************************************
*** WARNING: Unable to verify checksum for lmms.exe

*** WARNING: Unable to verify checksum for SDL2.dll
KEY_VALUES_STRING: 1
Key  : Analysis.CPU.mSec
Value: 1593

Key  : Analysis.Elapsed.mSec
Value: 4209

Key  : Analysis.IO.Other.Mb
Value: 0

Key  : Analysis.IO.Read.Mb
Value: 0

Key  : Analysis.IO.Write.Mb
Value: 0

Key  : Analysis.Init.CPU.mSec
Value: 515

Key  : Analysis.Init.Elapsed.mSec
Value: 3730

Key  : Analysis.Memory.CommitPeak.Mb
Value: 139

Key  : Analysis.Version.DbgEng
Value: 10.0.27704.1001

Key  : Analysis.Version.Description
Value: 10.2408.27.01 amd64fre

Key  : Analysis.Version.Ext
Value: 1.2408.27.1

Key  : Failure.Bucket
Value: HEAP_CORRUPTION_ACTIONABLE_BlockNotBusy_DOUBLE_FREE_80000003_ucrtbase.dll!free_base

Key  : Failure.Hash
Value: {acbee290-6526-0d11-a472-1fa34480839d}

Key  : Timeline.OS.Boot.DeltaSec
Value: 40509

Key  : Timeline.Process.Start.DeltaSec
Value: 296

Key  : WER.OS.Branch
Value: ge_release

Key  : WER.OS.Version
Value: 10.0.26100.1

Key  : WER.Process.Version
Value: 0.0.0.0

FILE_IN_CAB:  lmms-crash.dmp
NTGLOBALFLAG:  0
APPLICATION_VERIFIER_FLAGS:  0
CONTEXT:  (.ecxr)

rax=0000000000000000 rbx=00000000c0000374 rcx=d005898145be0000

rdx=00007ff86f5a51c3 rsi=0000000000000001 rdi=00007ff8d470b0e0

rip=00007ff8d45dc7e8 rsp=0000001517afb930 rbp=0000001517afbd00

r8=00007ff873c521f8  r9=0000000000000001 r10=0000001517afb210

r11=0000000000000002 r12=0000000000000000 r13=0000000000000000

r14=0000018c00260000 r15=0000018c07058df0

iopl=0         nv up ei pl nz na pe nc

cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00000200

ntdll!RtlReportCriticalFailure+0x68:

00007ff8`d45dc7e8 cc              int     3

Resetting default scope
EXCEPTION_RECORD:  (.exr -1)

ExceptionAddress: 00007ff8d45dc7e8 (ntdll!RtlReportCriticalFailure+0x0000000000000068)

ExceptionCode: 80000003 (Break instruction exception)

ExceptionFlags: 00000000

NumberParameters: 1

Parameter[0]: 0000000000000000
PROCESS_NAME:  lmms.exe
ERROR_CODE: (NTSTATUS) 0x80000003 - {EXCEPTION}  Breakpoint  A breakpoint has been reached.
EXCEPTION_CODE_STR:  80000003
EXCEPTION_PARAMETER1:  0000000000000000
ADDITIONAL_DEBUG_TEXT:  Followup set based on attribute [Heap_Error_Type] from Frame:[0] on thread:[PSEUDO_THREAD] ; Followup set based on attribute [Is_ChosenCrashFollowupThread] from Frame:[0] on thread:[PSEUDO_THREAD]
FAULTING_THREAD:  ffffffff
STACK_TEXT:

0000000000000000 0000000000000000 ucrtbase!free_base+0x0
STACK_COMMAND:  !heap ; ** Pseudo Context ** ManagedPseudo ** Value: ffffffff ** ; kb
SYMBOL_NAME:  ucrtbase!free_base+0
MODULE_NAME: ucrtbase
IMAGE_NAME:  ucrtbase.dll
FAILURE_BUCKET_ID:  HEAP_CORRUPTION_ACTIONABLE_BlockNotBusy_DOUBLE_FREE_80000003_ucrtbase.dll!free_base
OS_VERSION:  10.0.26100.1
BUILDLAB_STR:  ge_release
OSPLATFORM_TYPE:  x64
OSNAME:  Windows 10
IMAGE_VERSION:  10.0.26100.1882
FAILURE_ID_HASH:  {acbee290-6526-0d11-a472-1fa34480839d}
Followup:     MachineOwner

Screenshots / Minimum Reproducible Project

• debit debug.zip

If needed, I have multiple crash dumps of different projects that have the same issue. I can provide them by request of the maintainers

Please search the issue tracker for existing bug reports before submitting your own.

• I have searched all existing issues and confirmed that this is not a duplicate.