4.11 showflag in DefaultEngine.ini doesn't work anymore

Under the [SystemSettings] header in [Project]\Config\DefaultEngine.ini, ShowFlag.ANYTHING doesn’t seem to work, but the r. flags do. E.g. This works

r.DefaultFeature.AutoExposure=False

This doesn’t:

ShowFlag.LensFlares=0

I’m having this exact issue, did you figure it out?

I just worked around it by performing Execute Console Command in my game mode BP’s Begin Play in a loop with an array of ShowFlag commands.