Change setting to not let qt creator change from compile output to issues list
Open up project with a build error.
Click "Compile output".
Click on a build error in the compile output to go to the file.
Click on the error
fireworks (nullptr dereference)

I have added the if(g_get_Tasks). Without it there is a crash.
In this specific situation, updateTaskHandlerActionsState() is called before setupTaskHandlers()

Strangely, the above added if(g_get_Tasks) seems to fix the problem and the click still works to take you to the error in the issues page. setupTaskHandlers is called immediately after returning and everything seems to just work. Feels like a bit of a kludge, but nullptr check seems reasonable to add regardless!