Sapphire effects don't render out correctly or render out at all in premiere

i’m trying to render out a five-minute video but the very first sapphire effect i used (lens flare) doesn’t render out correctly. The color looks almost cartoonish. i’ve tried other effects (whiplash transition) but that doesn’t show up at all. i’ve never had this happen before. i’ve tried changing the name, rendering it through media encoder, etc and nothing seems to work. the only thing i noticed is that i’m transitioning from a nested sequence. not sure if that could have anything to do with it. has anyone else had this problem?