I don’t even know what to test. What potential factors could allow a character class to view debug spline lines when others cannot? What is even stranger is that the class that can see the splines is a blueprinted child of a C++ class that is unable to see it.
I have showflag.splines enabled and the spline components set to draw debug (which is why I am able to see the splines from this one class in the first place.)
If I set my viewtarget to another camera in the world while still controlling the class that can see the splines, I still can see them.