Packaged game crashes on play

I’m building a game using the 4.13.2 version of the engine, Windows 64-bit, but unfortunately the game crashes whenever I play it. I can build and play a final shipping configuration, but not a development configuration which is necessary for testing. I need access to some basic profiling tools (Stat Unit, Stat FPS, maybe GPU Profiler). Can anyone help me understand what might be the problem? The game works fine on a shipping build and play-in-editor, not development build.

Is it Blueprints only or does it have some C++?

Blueprints only.