Here you can find a zip with the log output…
The issue is appearing in a project that started on version 4.0.1 and has been upgraded throughout the updates to UE4. The last version that I upgraded from was 4.5.1.
And to answer you question about previously seeing this, yes. I reported issues with GameInstance on multiple occasions back when it was released I want to say around 4.3 and I have a feeling it has to do with the fact it has a variable that references a custom Blueprint-defined struct. I’m not sure but I have feeling it’s related to it since my previous versions had that in common and suffered the same. This has been the first time I’ve run DebugGame as the build config from Visual Studio and noticed where it caught the exception but I didn’t build this before and would experience the crashing in the editor so I can’t say for sure, it’s the same thing, but I’m nearly positive since this emulates what I experienced in the past. Quite honestly, I’ve had to re-create this class a couple times since GameInstance was available but it still seems to be very unstable.
Thanks and let me know your thoughts and if there is anything else I can investigate. Take care