It looks it's this "bug":
Posts made by Strg.Attractor
RE: Crash on qml Qt3D examples in Release Mode with mingw64
I'm facing the same problems, I'm now in 5.13 and all the examples related with Q3D, basic-shapes, wireframe...., crash in release mode for mingw 64bits. Did anyone find the solution for this?, it's a problem with a library ?