application crash on macOS10.13.6 when using qtwebengine

我在我的代码中使用了QWebEngineView，放在QDialog中显示网页，之前一直运行良好，但是当*更新MacOS到10.13.6版本*时发现在部分机型上出现闪退的情况，尤其是当使用鼠标快速调整窗口大小的时候，闪退几率很高。

我原本使用的环境是 PyQt5.9，用Pyinstaller3.3.1打包，后来尝试更新到PyQt5.11发现问题依旧。

于是我尝试下载了Qt creator，用brew安装qt5.11，并找到了（windows的版本中）qt5.11提供的qt-demo项目contentmainipulation进行了编译，发现同样有闪退问题存在。

崩溃日志及机型信息请参考 链接

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English version:

hello, I write a demo of dialog, use QWebEngineView to show a web page, then use pyinstaller to make *.exe and *.dmg. It works before, but when I upgraded my mac os to 10.13.6, it will crash if I resize the dialog quickly. 
 
I can find an error message: segmentation fault 11, but I have no idea.
 
my environment: PyQt5.9, pyinstaller 3.3.1, I try PyQt5.11, and py2app, the problem still occurs.
 
and I find some friends help me test, some of our mac is fine, and some crash, especially a virtual machine.
 
So I try the Qt5.11, and build a release of the qt-demo project "contentmainipulation"(c++version, not pyqt) on my mac, and it still crashes on macos10.13.6. 
 
crash report and log, please see this link
 
Thanks a lot!
 

the header of the log is :

//代码占位符
Process: AirtestIDE [26617]
Path: /Applications/AirtestIDE.app/Contents/MacOS/AirtestIDE
Identifier: org.qt-project.Qt.QtWebEngineCore
Version: 0.1.5 (0.1.5)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: AirtestIDE [26617]
User ID: 501

Date/Time: 2018-08-03 15:35:13.697 +0800
OS Version: Mac OS X 10.13.6 (17G65)
Report Version: 12
Anonymous UUID: A3797357-A89E-5135-42BD-DEF05BDB155F

Sleep/Wake UUID: 5623F353-C173-4114-AAC5-62027D3587C8

Time Awake Since Boot: 150000 seconds
Time Since Wake: 370 seconds

System Integrity Protection: enabled

Crashed Thread: 0 CrBrowserMain Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]