Self shadow does not work when simulating or in PIE. Content Examples ParallaxOcclusionMapping level has a good example of this on the shadows example. Self Shadow Working:Standalone GameIn Editor ...
Blueprint Macro Libraries based on Actor cannot be reparented to Object Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promoted-CL-2605171) ...