HipChat 4 not working after update

QtWebEngineProcess.exe has stopped working:

Problem signature:
Problem Event Name: APPCRASH
Application Name: QtWebEngineProcess.exe
Application Version: 0.0.0.0
Application Timestamp: 56c6fafd
Fault Module Name: Qt5WebEngineCore.dll
Fault Module Version: 5.7.0.0
Fault Module Timestamp: 57b473bd
Exception Code: 80000003
Exception Offset: 00b5a4a1
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

And I get a blank page whenever I open the desktop App.