system entities warning while building video_discovery blueprint

[kran46]

Hi, While building the blueprint for video_discovery I have come across the following error : "warning: Unable to load query: Unable to resolve system entity of type 'sys_interval' for '80s'." While asking questions using such intervals like "list tom hanks movies from the 80s" the sys_interval is not being resolved leading to wrong answers from the engine. I have tried the solutions given in the documentation but nothing got resolved. Any help from your end in understanding and resolving the error is highly appreciated.