QtGui.dll异常

使用QT界面库运行的程序在Windows 7系统上运行时不定时弹出程序遇到问题需要关闭的提示，收集dmp文件分析，发现如下错误发生在QtGui.dll

请帮忙分析一下错误的原因，是否是已知bug，新版本是否已解决，多谢

附件为dmp文件，以下为windbg分析的dmp信息：

FAULTING_IP:
Qt5Gui+677a2
00e277a2 ?? ???

EXCEPTION_RECORD: ffffffff – (.exr 0xffffffffffffffff)
ExceptionAddress: 00e277a2 (Qt5Gui+0x000677a2)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 00000001
Parameter[1]: 00000018
Attempt to write to address 00000018

PROCESS_NAME: iNode Client.exe

ADDITIONAL_DEBUG_TEXT:
Use '!findthebuild' command to search for the target build information.
If the build information is available, run '!findthebuild -s ; .reload' to set symbol path and load symbols.

MODULE_NAME: Qt5Gui

FAULTING_MODULE: 7c920000 ntdll

DEBUG_FLR_IMAGE_TIMESTAMP: 51d28842

ERROR_CODE: (NTSTATUS) 0xc0000005 - 0x%08lx

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - 0x%08lx

EXCEPTION_PARAMETER1: 00000001

EXCEPTION_PARAMETER2: 00000018

WRITE_ADDRESS: 00000018

FOLLOWUP_IP:
Qt5Gui+677a2
00e277a2 ?? ???

MOD_LIST: <ANALYSIS/>

FAULTING_THREAD: 00000438

BUGCHECK_STR: APPLICATION_FAULT_INVALID_POINTER_WRITE_WRONG_SYMBOLS

PRIMARY_PROBLEM_CLASS: INVALID_POINTER_WRITE

DEFAULT_BUCKET_ID: INVALID_POINTER_WRITE

IP_ON_STACK:
+51e32faf0185d9a0
0012d800 6498 cwde

FRAME_ONE_INVALID: 1

LAST_CONTROL_TRANSFER: from 0012d800 to 00e277a2

STACK_TEXT:
WARNING: Stack unwind information not available. Following frames may be wrong.
0012d778 0012d800 07845e00 02c612b0 00000012 Qt5Gui+0x677a2
0012d7b0 07840000 00000000 02d62328 00e2169f 0x12d800
0012d7b4 00000000 02d62328 00e2169f 0012d800 0x7840000

STACK_COMMAND: ~0s; .ecxr ; kb

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: Qt5Gui+677a2

FOLLOWUP_NAME: MachineOwner

IMAGE_NAME: Qt5Gui.dll

BUCKET_ID: WRONG_SYMBOLS

FAILURE_BUCKET_ID: INVALID_POINTER_WRITE_c0000005_Qt5Gui.dll!Unknown

Followup: MachineOwner