Nativeize assets fail with the new variable types introduced in 4.15. This issues also occurred when tested using the third person character template
Build fails with:
FirstPersonCharacter__pf205484891.h(43) : Error: Unrecognized type 'AFirstPersonCharacter_C' - type must be a UCLASS, USTRUCT or UENUM
Rudy T - Further testing shows that this can be reproduces with any actor reference that has been changed to a TSet or a TMap
Head over to the existing Questions & Answers thread and let us know what's up.