Power BI API error "Set your date’s start time so it’s before the end time, then try calling this AP

Hi v-robertq-msft , 

My start date is earlier than my end date. 

I just tried this again in the API explorer on MS website and it's still giving me the same error 😞

I'm trying to call the Get Activity Events API. 

This was working last month but suddenly it doesn't 😭