VR 10 pin bowling in Unreal Engine / C++

10 pin bowling is my first VR project for Oculus Rift.  It's also my first proper project in Unreal Engine / C++.  
I've been doing a Udemy course on Unreal Engine / C++ that's great and I wanted to do a project of my own as well as following the tutorials.  
The main bowling mechanic was very quick to make.  It took much longer to lift up the skittles that were still standing and sweep away the others.  Also the scoring took a long time.
I learnt to write the code in really small steps because if you make any errors in C++ the Unreal Editor crashes and you have to reload everything.  
I haven't sorted out packaging to make an .exe.  It builds with no errors, but crashes when I run it.  If I sort this out, I will upload the .exe.