QvtkWidget always crash with Qt5.12 on macOS10.14.2

Your Environment

• Operating System and version: macOS 10.14.2
• Compiler: Xcode 10.1 build-in clang, build MACOSX_BUNDLE with Clion latest stable version
• PCL Version: 1.9.1 (brew bottles version)
• Qt Version: 5.12 LTS (brew bottles version)
• VTK Version: 8.1.2 (brew version, compile with '--with-qt')

Context

Before I use the Qt 5.11.2 & PCL1.8.1 & VTK 8.1.1, everything is ok except VTK's deprecated warning, just like #2619. But Qt 5.11.2 not good adapt with macOS 10.14, and 5.12 is official announced support 10.14. So I use the homebrew upgrade the PCL -> 1.9.1, Qt -> 5.12, VTK -> 8.1.2. Build and run the app, qvtkWidget not display, then click mouse crash happend.

Current Behavior

I don't know whether this problem is same as #1601 or #2619, the crash always happend.

Possible Solution

Maybe i can wait for next milestone, migrate to QVTKOpenGLWidget
I upload the crash log from macOS to OneDrive: crashlog

Start with the QvtkWidget behavior in the reported macOS 10.14.2, Qt 5.12, PCL 1.9.1, and VTK 8.1.2 environment, and review the linked crash log and related issues #1601 and #2619. Reproduce the missing display and mouse-triggered crash, then verify that the widget displays correctly and remains stable when clicked.