C++ Variables, when only “EditAnywhere” is specified, will only appear (and be editable) through the Details Panel (either instance or default i.e. anywhere).
The variables should not appear in the variables list in blueprints with these settings.You have to add either BlueprintReadOnly, or BlueprintReadWrite to the UPROPERTY. So it would look like this:
UPROPERTY(EditAnywhere, BlueprintReadWrite)
int32 GameScore;
Also, make sure to be using “int32” instead of “int”.