Problem with Groupby and Recurring Events ID Parameter

I have innumerable websites where I’m using the [events_list] shortcode on the website homepage, specifically this code from the documentation on how to show recurring events but have only the first instance appear:

[events_list groupby=”recurrence_id” groupby_orderby=”event_start_date,event_start_time”]

All of a sudden with the update to 6.5 this got broken. When I remove the groupby=”recurrence_id” parameter, than all of a sudden it works.

Can someone please look into this?